diff --git a/src/AdornedRulerPanel.cpp b/src/AdornedRulerPanel.cpp
index f17404fb4..96b27c026 100644
--- a/src/AdornedRulerPanel.cpp
+++ b/src/AdornedRulerPanel.cpp
@@ -570,7 +570,8 @@ public:
    static std::shared_ptr<PlayheadHandle>
    HitTest( const AudacityProject *pProject, wxCoord xx )
    {
-      if( ControlToolBar::IsTransportingPinned() &&
+      if( ControlToolBar::Get( *pProject )
+         .IsTransportingPinned() &&
           ProjectAudioIO::Get( *pProject ).IsAudioActive() )
       {
          const auto targetX = GetPlayHeadX( pProject );
@@ -1671,7 +1672,7 @@ void AdornedRulerPanel::UpdateButtonStates()
    auto common = [this]
    (AButton &button, const CommandID &commandName, const wxString &label) {
       TranslatedInternalString command{ commandName, label };
-      ToolBar::SetButtonToolTip( button, &command, 1u );
+      ToolBar::SetButtonToolTip( *mProject, button, &command, 1u );
       button.SetLabel(button.GetToolTipText());
 
       button.UpdateStatus();
@@ -2068,7 +2069,7 @@ void AdornedRulerPanel::DoDrawIndicator
       dc->DrawPolygon( 3, tri );
    }
    else {
-      bool pinned = ControlToolBar::IsTransportingPinned();
+      bool pinned = ControlToolBar::Get( *mProject ).IsTransportingPinned();
       wxBitmap & bmp = theTheme.Bitmap( pinned ? 
          (playing ? bmpPlayPointerPinned : bmpRecordPointerPinned) :
          (playing ? bmpPlayPointer : bmpRecordPointer) 
diff --git a/src/ProjectWindow.cpp b/src/ProjectWindow.cpp
index a9d5f02b7..e22ae3d49 100644
--- a/src/ProjectWindow.cpp
+++ b/src/ProjectWindow.cpp
@@ -26,8 +26,6 @@ Paul Licameli split from AudacityProject.cpp
 #include "prefs/ThemePrefs.h"
 #include "prefs/TracksPrefs.h"
 #include "toolbars/ControlToolBar.h"
-#include "toolbars/SelectionBar.h"
-#include "toolbars/SpectralSelectionBar.h"
 #include "toolbars/ToolManager.h"
 #include "tracks/ui/Scrubbing.h"
 #include "widgets/wxPanelWrapper.h"
@@ -1696,7 +1694,6 @@ void ProjectWindow::TP_DisplaySelection()
    auto &ruler = AdornedRulerPanel::Get(project);
    auto &viewInfo = ViewInfo::Get( project );
    const auto &selectedRegion = viewInfo.selectedRegion;
-   double audioTime;
    auto &playRegion = ViewInfo::Get( project ).playRegion;
 
    auto gAudioIO = AudioIOBase::Get();
@@ -1705,18 +1702,6 @@ void ProjectWindow::TP_DisplaySelection()
    else
       // Cause ruler redraw anyway, because we may be zooming or scrolling
       ruler.Refresh();
-
-   if (gAudioIO->IsBusy())
-      audioTime = gAudioIO->GetStreamTime();
-   else
-      audioTime = playRegion.GetStart();
-
-   SelectionBar::Get( project ).SetTimes(selectedRegion.t0(),
-                               selectedRegion.t1(), audioTime);
-#ifdef EXPERIMENTAL_SPECTRAL_EDITING
-   SpectralSelectionBar::Get( project ).SetFrequencies(
-      selectedRegion.f0(), selectedRegion.f1());
-#endif
 }
 
 
diff --git a/src/toolbars/ControlToolBar.cpp b/src/toolbars/ControlToolBar.cpp
index 99889aeb2..5c4541dff 100644
--- a/src/toolbars/ControlToolBar.cpp
+++ b/src/toolbars/ControlToolBar.cpp
@@ -56,8 +56,6 @@
 #include <wx/tooltip.h>
 #include <wx/datetime.h>
 
-#include "TranscriptionToolBar.h"
-
 #include "../AColor.h"
 #include "../AdornedRulerPanel.h"
 #include "../AllThemeResources.h"
@@ -106,8 +104,8 @@ END_EVENT_TABLE()
 // Note that we use the legacy "Control" string as the section because this
 // gets written to prefs and cannot be changed in prefs to maintain backwards
 // compatibility
-ControlToolBar::ControlToolBar()
-: ToolBar(TransportBarID, _("Transport"), wxT("Control"))
+ControlToolBar::ControlToolBar( AudacityProject &project )
+: ToolBar(project, TransportBarID, _("Transport"), wxT("Control"))
 {
    mPaused = false;
 
@@ -314,7 +312,8 @@ void ControlToolBar::RegenerateTooltips()
                wxT("SelStart"), _("Select to Start") } );
             break;
       }
-      ToolBar::SetButtonToolTip(*pCtrl, commands.data(), commands.size());
+      ToolBar::SetButtonToolTip(
+         mProject, *pCtrl, commands.data(), commands.size());
    }
 #endif
 }
@@ -476,7 +475,7 @@ void ControlToolBar::Repaint( wxDC *dc )
 
 void ControlToolBar::EnableDisableButtons()
 {
-   AudacityProject *p = GetActiveProject();
+   AudacityProject *p = &mProject;
 
    bool paused = mPause->IsDown();
    bool playing = mPlay->IsDown();
@@ -487,12 +486,6 @@ void ControlToolBar::EnableDisableButtons()
    // Only interested in audio type tracks
    bool tracks = p && TrackList::Get( *p ).Any<AudioTrack>(); // PRL:  PlayableTrack ?
 
-   if (p) {
-      const auto playAtSpeedTB = &TranscriptionToolBar::Get( *p );
-      if (playAtSpeedTB)
-         playAtSpeedTB->SetEnabled(CanStopAudioStream() && tracks && !recording);
-   }
-
    mPlay->SetEnabled(CanStopAudioStream() && tracks && !recording);
    mRecord->SetEnabled(
       CanStopAudioStream() &&
@@ -503,7 +496,6 @@ void ControlToolBar::EnableDisableButtons()
    mRewind->SetEnabled(IsPauseDown() || (!playing && !recording));
    mFF->SetEnabled(tracks && (IsPauseDown() || (!playing && !recording)));
 
-   //auto pProject = GetActiveProject();
    mPause->SetEnabled(CanStopAudioStream());
 }
 
@@ -520,7 +512,7 @@ void ControlToolBar::SetPlay(bool down, PlayAppearance appearance)
       mPlay->SetAlternateIdx(0);
    }
    EnableDisableButtons();
-   UpdateStatusBar(GetActiveProject());
+   UpdateStatusBar( &mProject );
 }
 
 void ControlToolBar::SetStop(bool down)
@@ -618,9 +610,7 @@ int ControlToolBar::PlayPlayRegion(const SelectedRegion &selectedRegion,
    if (cutpreview && t0==t1)
       return -1; /* msmeyer: makes no sense */
 
-   AudacityProject *p = GetActiveProject();
-   if (!p)
-      return -1;  // Should never happen, but...
+   AudacityProject *p = &mProject;
 
    auto &tracks = TrackList::Get( *p );
 
@@ -761,9 +751,8 @@ void ControlToolBar::PlayCurrentRegion(bool looped /* = false */,
    if (!CanStopAudioStream())
       return;
 
-   AudacityProject *p = GetActiveProject();
+   AudacityProject *p = &mProject;
 
-   if (p)
    {
 
       const auto &playRegion = ViewInfo::Get( *p ).playRegion;
@@ -795,7 +784,7 @@ void ControlToolBar::OnKeyEvent(wxKeyEvent & event)
    // If so, "!CanStopAudioStream()" should probably apply.
    if (event.GetKeyCode() == WXK_SPACE) {
       if (gAudioIO->IsStreamActive(
-         ProjectAudioIO::Get( *GetActiveProject() ).GetAudioIOToken()
+         ProjectAudioIO::Get( mProject ).GetAudioIOToken()
       )) {
          SetPlay(false);
          SetStop(true);
@@ -813,7 +802,7 @@ void ControlToolBar::OnKeyEvent(wxKeyEvent & event)
 
 void ControlToolBar::OnPlay(wxCommandEvent & WXUNUSED(evt))
 {
-   auto p = GetActiveProject();
+   auto p = &mProject;
 
    if (!CanStopAudioStream())
       return;
@@ -831,7 +820,7 @@ void ControlToolBar::OnStop(wxCommandEvent & WXUNUSED(evt))
 {
    if (CanStopAudioStream()) {
       StopPlaying();
-      UpdateStatusBar(GetActiveProject());
+      UpdateStatusBar( &mProject );
    }
 }
 
@@ -840,7 +829,7 @@ bool ControlToolBar::CanStopAudioStream()
    auto gAudioIO = AudioIO::Get();
    return (!gAudioIO->IsStreamActive() ||
            gAudioIO->IsMonitoring() ||
-           gAudioIO->GetOwningProject() == GetActiveProject());
+           gAudioIO->GetOwningProject() == &mProject );
 }
 
 void ControlToolBar::PlayDefault()
@@ -856,7 +845,7 @@ void ControlToolBar::StopPlaying(bool stopStream /* = true*/)
 {
    StopScrolling();
 
-   AudacityProject *project = GetActiveProject();
+   AudacityProject *project = &mProject;
 
    if(project) {
       // Let scrubbing code do some appearance change
@@ -1001,10 +990,7 @@ void ControlToolBar::OnRecord(wxCommandEvent &evt)
    // normally used for buttons.
 
    // Code from CommandHandler start...
-   AudacityProject * p = GetActiveProject();
-   wxASSERT(p);
-   if (!p)
-      return;
+   AudacityProject *p = &mProject;
 
    bool altAppearance = mRecord->WasShiftDown();
    if (evt.GetInt() == 1) // used when called by keyboard shortcut. Default (0) ignored.
@@ -1123,7 +1109,7 @@ bool ControlToolBar::DoRecord(AudacityProject &project,
       }
 
       // Success or not:
-      UpdateStatusBar(GetActiveProject());
+      UpdateStatusBar( &mProject );
    });
 
    auto transportTracks = tracks;
@@ -1314,7 +1300,7 @@ void ControlToolBar::OnPause(wxCommandEvent & WXUNUSED(evt))
 
 #ifdef EXPERIMENTAL_SCRUBBING_SUPPORT
 
-   auto project = GetActiveProject();
+   auto project = &mProject;
    auto &scrubber = Scrubber::Get( *project );
 
    // Bug 1494 - Pausing a seek or scrub should just STOP as
@@ -1337,7 +1323,7 @@ void ControlToolBar::OnPause(wxCommandEvent & WXUNUSED(evt))
       gAudioIO->SetPaused(mPaused);
    }
 
-   UpdateStatusBar(GetActiveProject());
+   UpdateStatusBar( &mProject );
 }
 
 void ControlToolBar::OnRewind(wxCommandEvent & WXUNUSED(evt))
@@ -1345,8 +1331,8 @@ void ControlToolBar::OnRewind(wxCommandEvent & WXUNUSED(evt))
    mRewind->PushDown();
    mRewind->PopUp();
 
-   AudacityProject *p = GetActiveProject();
-   if (p) {
+   AudacityProject *p = &mProject;
+   {
       TransportActions::StopIfPaused( *p );
       ProjectWindow::Get( *p ).Rewind(mRewind->WasShiftDown());
    }
@@ -1357,9 +1343,9 @@ void ControlToolBar::OnFF(wxCommandEvent & WXUNUSED(evt))
    mFF->PushDown();
    mFF->PopUp();
 
-   AudacityProject *p = GetActiveProject();
+   AudacityProject *p = &mProject;
 
-   if (p) {
+   {
       TransportActions::StopIfPaused( *p );
       ProjectWindow::Get( *p ).SkipEnd(mFF->WasShiftDown());
    }
@@ -1371,8 +1357,8 @@ void ControlToolBar::SetupCutPreviewTracks(double WXUNUSED(playStart), double cu
 // STRONG-GUARANTEE (for state of mCutPreviewTracks)
 {
    ClearCutPreviewTracks();
-   AudacityProject *p = GetActiveProject();
-   if (p) {
+   AudacityProject *p = &mProject;
+   {
       auto trackRange = TrackList::Get( *p ).Selected< const PlayableTrack >();
       if( !trackRange.empty() ) {
          auto cutPreviewTracks = TrackList::Create();
@@ -1427,7 +1413,7 @@ wxString ControlToolBar::StateForStatusBar()
 {
    wxString state;
 
-   auto pProject = GetActiveProject();
+   auto pProject = &mProject;
    auto scrubState = pProject
       ? Scrubber::Get( *pProject ).GetUntranslatedStateString()
       : wxString();
@@ -1457,11 +1443,11 @@ void ControlToolBar::UpdateStatusBar(AudacityProject *pProject)
       .GetStatusBar()->SetStatusText(StateForStatusBar(), stateStatusBarField);
 }
 
-bool ControlToolBar::IsTransportingPinned()
+bool ControlToolBar::IsTransportingPinned() const
 {
    if (!TracksPrefs::GetPinnedHeadPreference())
       return false;
-   const auto &scrubber = Scrubber::Get( *::GetActiveProject() );
+   const auto &scrubber = Scrubber::Get( mProject );
    return
      !(scrubber.HasMark() &&
        !scrubber.WasSpeedPlaying() &&
@@ -1470,15 +1456,15 @@ bool ControlToolBar::IsTransportingPinned()
 
 void ControlToolBar::StartScrollingIfPreferred()
 {
-   if (IsTransportingPinned())
+   if ( IsTransportingPinned() )
       StartScrolling();
 #ifdef __WXMAC__
-   else if (Scrubber::Get( *::GetActiveProject() ).HasMark()) {
+   else if (Scrubber::Get( mProject ).HasMark()) {
       // PRL:  cause many "unnecessary" refreshes.  For reasons I don't understand,
       // doing this causes wheel rotation events (mapped from the double finger vertical
       // swipe) to be delivered more uniformly to the application, so that speed control
       // works better.
-      ProjectWindow::Get( *::GetActiveProject() ).GetPlaybackScroller().Activate
+      ProjectWindow::Get( mProject ).GetPlaybackScroller().Activate
          (ProjectWindow::PlaybackScroller::Mode::Refresh);
    }
 #endif
@@ -1489,7 +1475,7 @@ void ControlToolBar::StartScrollingIfPreferred()
 void ControlToolBar::StartScrolling()
 {
    using Mode = ProjectWindow::PlaybackScroller::Mode;
-   const auto project = GetActiveProject();
+   const auto project = &mProject;
    if (project) {
       auto gAudioIO = AudioIO::Get();
       auto mode = Mode::Pinned;
@@ -1527,7 +1513,7 @@ void ControlToolBar::StartScrolling()
 
 void ControlToolBar::StopScrolling()
 {
-   const auto project = GetActiveProject();
+   const auto project = &mProject;
    if(project)
       ProjectWindow::Get( *project ).GetPlaybackScroller().Activate
          (ProjectWindow::PlaybackScroller::Mode::Off);
@@ -1535,18 +1521,18 @@ void ControlToolBar::StopScrolling()
 
 void ControlToolBar::CommitRecording()
 {
-   const auto project = GetActiveProject();
+   const auto project = &mProject;
    TrackList::Get( *project ).ApplyPendingTracks();
 }
 
 void ControlToolBar::CancelRecording()
 {
-   const auto project = GetActiveProject();
+   const auto project = &mProject;
    TrackList::Get( *project ).ClearPendingTracks();
 }
 
 #ifdef EXPERIMENTAL_MIDI_OUT
-#include "NoteTrack.h"
+#include "../NoteTrack.h"
 #endif
 
 TransportTracks GetAllPlaybackTracks(TrackList &trackList, bool selectedOnly, bool useMidi)
@@ -1572,3 +1558,8 @@ TransportTracks GetAllPlaybackTracks(TrackList &trackList, bool selectedOnly, bo
 #endif
    return result;
 }
+
+static RegisteredToolbarFactory factory{ TransportBarID,
+   []( AudacityProject &project ){
+      return ToolBar::Holder{ safenew ControlToolBar{ project } }; }
+};
diff --git a/src/toolbars/ControlToolBar.h b/src/toolbars/ControlToolBar.h
index 81cb20e07..6324bce82 100644
--- a/src/toolbars/ControlToolBar.h
+++ b/src/toolbars/ControlToolBar.h
@@ -51,10 +51,10 @@ class ControlToolBar final : public ToolBar {
 
  public:
 
-   ControlToolBar();
+   ControlToolBar( AudacityProject &project );
    virtual ~ControlToolBar();
 
-   static bool IsTransportingPinned();
+   bool IsTransportingPinned() const;
 
    static ControlToolBar *Find( AudacityProject &project );
    static ControlToolBar &Get( AudacityProject &project );
diff --git a/src/toolbars/DeviceToolBar.cpp b/src/toolbars/DeviceToolBar.cpp
index 25a4a7bad..daf8aee4f 100644
--- a/src/toolbars/DeviceToolBar.cpp
+++ b/src/toolbars/DeviceToolBar.cpp
@@ -72,8 +72,8 @@ static int DeviceToolbarPrefsID()
 }
 
 //Standard contructor
-DeviceToolBar::DeviceToolBar()
-: ToolBar(DeviceBarID, _("Device"), wxT("Device"), true)
+DeviceToolBar::DeviceToolBar( AudacityProject &project )
+: ToolBar( project, DeviceBarID, _("Device"), wxT("Device"), true )
 {
    wxTheApp->Bind( EVT_RESCANNED_DEVICES,
       &DeviceToolBar::OnRescannedDevices, this );
@@ -351,12 +351,8 @@ void DeviceToolBar::EnableDisableButtons()
       // Here we should relinquish focus
       if (audioStreamActive) {
          wxWindow *focus = wxWindow::FindFocus();
-         if (focus == mHost || focus == mInput || focus == mOutput || focus == mInputChannels) {
-            AudacityProject *activeProject = GetActiveProject();
-            if (activeProject) {
-               TrackPanel::Get( *activeProject ).SetFocus();
-            }
-         }
+         if (focus == mHost || focus == mInput || focus == mOutput || focus == mInputChannels)
+            TrackPanel::Get( mProject ).SetFocus();
       }
 
       mHost->Enable(!audioStreamActive);
@@ -871,3 +867,8 @@ void DeviceToolBar::ShowComboDialog(wxChoice *combo, const wxString &title)
    }
 #endif
 }
+
+static RegisteredToolbarFactory factory{ DeviceBarID,
+   []( AudacityProject &project ){
+      return ToolBar::Holder{ safenew DeviceToolBar{ project } }; }
+};
diff --git a/src/toolbars/DeviceToolBar.h b/src/toolbars/DeviceToolBar.h
index ab673c357..a36c9a409 100644
--- a/src/toolbars/DeviceToolBar.h
+++ b/src/toolbars/DeviceToolBar.h
@@ -25,7 +25,7 @@ class DeviceToolBar final : public ToolBar {
 
  public:
 
-   DeviceToolBar();
+   DeviceToolBar( AudacityProject &project );
    virtual ~DeviceToolBar();
 
    static DeviceToolBar &Get( AudacityProject &project );
diff --git a/src/toolbars/EditToolBar.cpp b/src/toolbars/EditToolBar.cpp
index d69225f26..64d7ec325 100644
--- a/src/toolbars/EditToolBar.cpp
+++ b/src/toolbars/EditToolBar.cpp
@@ -76,8 +76,8 @@ BEGIN_EVENT_TABLE( EditToolBar, ToolBar )
 END_EVENT_TABLE()
 
 //Standard contructor
-EditToolBar::EditToolBar()
-: ToolBar(EditBarID, _("Edit"), wxT("Edit"))
+EditToolBar::EditToolBar( AudacityProject &project )
+: ToolBar(project, EditBarID, _("Edit"), wxT("Edit"))
 {
 }
 
@@ -259,8 +259,7 @@ void EditToolBar::ForAllButtons(int Action)
    CommandManager* cm = nullptr;
 
    if( Action & ETBActEnableDisable ){
-      p = GetActiveProject();
-      if (!p) return;
+      p = &mProject;
       cm = &CommandManager::Get( *p );
 #ifdef OPTION_SYNC_LOCK_BUTTON
       bool bSyncLockTracks;
@@ -279,7 +278,8 @@ void EditToolBar::ForAllButtons(int Action)
       if( Action & ETBActTooltips ){
          TranslatedInternalString command{
             entry.commandName, wxGetTranslation(entry.untranslatedLabel) };
-         ToolBar::SetButtonToolTip( *mButtons[entry.tool], &command, 1u );
+         ToolBar::SetButtonToolTip( mProject,
+            *mButtons[entry.tool], &command, 1u );
       }
 #endif
       if (cm) {
@@ -294,13 +294,15 @@ void EditToolBar::OnButton(wxCommandEvent &event)
    // Be sure the pop-up happens even if there are exceptions, except for buttons which toggle.
    auto cleanup = finally( [&] { mButtons[id]->InteractionOver();});
 
-   AudacityProject *p = GetActiveProject();
-   if (!p) return;
+   AudacityProject *p = &mProject;
    auto &cm = CommandManager::Get( *p );
 
    auto flags = MenuManager::Get(*p).GetUpdateFlags();
-   const CommandContext context( *GetActiveProject() );
+   const CommandContext context( *p );
    cm.HandleTextualCommand(EditToolbarButtonList[id].commandName, context, flags, NoFlagsSpecified);
 }
 
-
+static RegisteredToolbarFactory factory{ EditBarID,
+   []( AudacityProject &project ){
+      return ToolBar::Holder{ safenew EditToolBar{ project } }; }
+};
diff --git a/src/toolbars/EditToolBar.h b/src/toolbars/EditToolBar.h
index a81dc1bea..d666a4650 100644
--- a/src/toolbars/EditToolBar.h
+++ b/src/toolbars/EditToolBar.h
@@ -74,7 +74,7 @@ class EditToolBar final : public ToolBar {
 
  public:
 
-   EditToolBar();
+   EditToolBar( AudacityProject &project );
    virtual ~EditToolBar();
 
    void Create(wxWindow *parent) override;
diff --git a/src/toolbars/MeterToolBar.cpp b/src/toolbars/MeterToolBar.cpp
index b58b6458a..0fab2e640 100644
--- a/src/toolbars/MeterToolBar.cpp
+++ b/src/toolbars/MeterToolBar.cpp
@@ -48,11 +48,9 @@ BEGIN_EVENT_TABLE( MeterToolBar, ToolBar )
 END_EVENT_TABLE()
 
 //Standard contructor
-MeterToolBar::MeterToolBar(AudacityProject *project, int type)
-: ToolBar(type, _("Combined Meter"), wxT("CombinedMeter"), true)
+MeterToolBar::MeterToolBar(AudacityProject &project, int type)
+: ToolBar(project, type, _("Combined Meter"), wxT("CombinedMeter"), true)
 {
-   mProject = project;
-
    if( mType == RecordMeterBarID ){
       mWhichMeters = kWithRecordMeter;
       mLabel = _("Recording Meter");
@@ -88,7 +86,7 @@ void MeterToolBar::ReCreateButtons()
 {
    MeterPanel::State playState{ false }, recordState{ false };
 
-   auto &projectAudioIO = ProjectAudioIO::Get( *mProject );
+   auto &projectAudioIO = ProjectAudioIO::Get( mProject );
    if (mPlayMeter && projectAudioIO.GetPlaybackMeter() == mPlayMeter)
    {
       playState = mPlayMeter->SaveState();
@@ -116,13 +114,12 @@ void MeterToolBar::ReCreateButtons()
 void MeterToolBar::Populate()
 {
    SetBackgroundColour( theTheme.Colour( clrMedium  ) );
-   wxASSERT(mProject); // to justify safenew
    Add((mSizer = safenew wxGridBagSizer()), 1, wxEXPAND);
 
    if( mWhichMeters & kWithRecordMeter ){
       //JKC: Record on left, playback on right.  Left to right flow
       //(maybe we should do it differently for Arabic language :-)  )
-      mRecordMeter = safenew MeterPanel( mProject,
+      mRecordMeter = safenew MeterPanel( &mProject,
                                 this,
                                 wxID_ANY,
                                 true,
@@ -138,7 +135,7 @@ void MeterToolBar::Populate()
    }
 
    if( mWhichMeters & kWithPlayMeter ){
-      mPlayMeter = safenew MeterPanel( mProject,
+      mPlayMeter = safenew MeterPanel( &mProject,
                               this,
                               wxID_ANY,
                               false,
@@ -229,7 +226,7 @@ void MeterToolBar::OnSize( wxSizeEvent & event) //WXUNUSED(event) )
 
 bool MeterToolBar::Expose( bool show )
 {
-   auto &projectAudioIO = ProjectAudioIO::Get( *mProject );
+   auto &projectAudioIO = ProjectAudioIO::Get( mProject );
    if( show ) {
       if( mPlayMeter ) {
          projectAudioIO.SetPlaybackMeter( mPlayMeter );
@@ -274,3 +271,18 @@ void MeterToolBar::SetDocked(ToolDock *dock, bool pushed) {
    Fit();
 }
 
+static RegisteredToolbarFactory factory1{ RecordMeterBarID,
+   []( AudacityProject &project ){
+      return ToolBar::Holder{
+         safenew MeterToolBar{ project, RecordMeterBarID } }; }
+};
+static RegisteredToolbarFactory factory2{ PlayMeterBarID,
+   []( AudacityProject &project ){
+      return ToolBar::Holder{
+         safenew MeterToolBar{ project, PlayMeterBarID } }; }
+};
+static RegisteredToolbarFactory factory3{ MeterBarID,
+   []( AudacityProject &project ){
+      return ToolBar::Holder{
+         safenew MeterToolBar{ project, MeterBarID } }; }
+};
diff --git a/src/toolbars/MeterToolBar.h b/src/toolbars/MeterToolBar.h
index dae1724be..1752622ba 100644
--- a/src/toolbars/MeterToolBar.h
+++ b/src/toolbars/MeterToolBar.h
@@ -33,7 +33,7 @@ class MeterToolBar final : public ToolBar {
 
  public:
 
-   MeterToolBar(AudacityProject *project, int type);
+   MeterToolBar(AudacityProject &project, int type);
    virtual ~MeterToolBar();
 
    void Create(wxWindow *parent) override;
@@ -56,7 +56,6 @@ class MeterToolBar final : public ToolBar {
  private:
    void RegenerateTooltips() override;
 
-   AudacityProject *mProject;
    int mWhichMeters;
    wxGridBagSizer *mSizer;
    MeterPanel *mPlayMeter;
diff --git a/src/toolbars/MixerToolBar.cpp b/src/toolbars/MixerToolBar.cpp
index c50cf8676..b1f725169 100644
--- a/src/toolbars/MixerToolBar.cpp
+++ b/src/toolbars/MixerToolBar.cpp
@@ -55,8 +55,8 @@ BEGIN_EVENT_TABLE(MixerToolBar, ToolBar)
 END_EVENT_TABLE()
 
 //Standard contructor
-MixerToolBar::MixerToolBar()
-: ToolBar(MixerBarID, _("Mixer"), wxT("Mixer"), true)
+MixerToolBar::MixerToolBar( AudacityProject &project )
+: ToolBar(project, MixerBarID, _("Mixer"), wxT("Mixer"), true)
 {
    mInputSliderVolume = 0.0;
    mOutputSliderVolume = 0.0;
@@ -314,3 +314,8 @@ void MixerToolBar::SetToolTips()
       mOutputSlider->SetToolTipTemplate(_("Playback Volume (Unavailable; use system mixer.)"));
    }
 }
+
+static RegisteredToolbarFactory factory{ MixerBarID,
+   []( AudacityProject &project ){
+      return ToolBar::Holder{ safenew MixerToolBar{ project } }; }
+};
diff --git a/src/toolbars/MixerToolBar.h b/src/toolbars/MixerToolBar.h
index c310e3424..5e663a55e 100644
--- a/src/toolbars/MixerToolBar.h
+++ b/src/toolbars/MixerToolBar.h
@@ -23,7 +23,7 @@ class MixerToolBar final : public ToolBar {
 
  public:
 
-   MixerToolBar();
+   MixerToolBar( AudacityProject &project );
    virtual ~MixerToolBar();
 
    static MixerToolBar &Get( AudacityProject &project );
diff --git a/src/toolbars/ScrubbingToolBar.cpp b/src/toolbars/ScrubbingToolBar.cpp
index a916939b3..988fe1103 100644
--- a/src/toolbars/ScrubbingToolBar.cpp
+++ b/src/toolbars/ScrubbingToolBar.cpp
@@ -55,8 +55,8 @@ EVT_COMMAND_RANGE( STBFirstButton,
 END_EVENT_TABLE()
 
 //Standard contructor
-ScrubbingToolBar::ScrubbingToolBar()
-: ToolBar(ScrubbingBarID, _("Scrub"), wxT("Scrub"))
+ScrubbingToolBar::ScrubbingToolBar( AudacityProject &project )
+: ToolBar(project, ScrubbingBarID, _("Scrub"), wxT("Scrub"))
 {
 }
 
@@ -147,10 +147,10 @@ void ScrubbingToolBar::RegenerateTooltips()
    (AButton &button, const wxString &label, const CommandID &cmd)
    {
       TranslatedInternalString command{ cmd, label };
-      ToolBar::SetButtonToolTip( button, &command, 1u );
+      ToolBar::SetButtonToolTip( mProject, button, &command, 1u );
    };
 
-   auto project = GetActiveProject();
+   auto project = &mProject;
    if (project) {
       auto &scrubber = Scrubber::Get( *project );
 
@@ -192,7 +192,7 @@ void ScrubbingToolBar::RegenerateTooltips()
 
 void ScrubbingToolBar::OnButton(wxCommandEvent &event)
 {
-   AudacityProject *p = GetActiveProject();
+   AudacityProject *p = &mProject;
    if (!p) return;
    auto &scrubber = Scrubber::Get( *p );
 
@@ -222,7 +222,7 @@ void ScrubbingToolBar::EnableDisableButtons()
    const auto seekButton = mButtons[STBSeekID];
    seekButton->SetEnabled(true);
 
-   AudacityProject *p = GetActiveProject();
+   AudacityProject *p = &mProject;
    if (!p) return;
 
    auto &scrubber = Scrubber::Get( *p );
@@ -261,3 +261,8 @@ void ScrubbingToolBar::EnableDisableButtons()
    RegenerateTooltips();
    scrubber.CheckMenuItems();
 }
+
+static RegisteredToolbarFactory factory{ ScrubbingBarID,
+   []( AudacityProject &project ){
+      return ToolBar::Holder{ safenew ScrubbingToolBar{ project } }; }
+};
diff --git a/src/toolbars/ScrubbingToolBar.h b/src/toolbars/ScrubbingToolBar.h
index 4dec81e55..ce13a3804 100644
--- a/src/toolbars/ScrubbingToolBar.h
+++ b/src/toolbars/ScrubbingToolBar.h
@@ -40,7 +40,7 @@ class ScrubbingToolBar final : public ToolBar {
 
 public:
 
-   ScrubbingToolBar();
+   ScrubbingToolBar( AudacityProject &project );
    virtual ~ScrubbingToolBar();
 
    static ScrubbingToolBar &Get( AudacityProject &project );
diff --git a/src/toolbars/SelectionBar.cpp b/src/toolbars/SelectionBar.cpp
index 39d078817..63a7dbfe2 100644
--- a/src/toolbars/SelectionBar.cpp
+++ b/src/toolbars/SelectionBar.cpp
@@ -56,8 +56,11 @@ with changes in the SelectionBar.
 #include "../AColor.h"
 #include "../KeyboardCapture.h"
 #include "../Prefs.h"
+#include "../Project.h"
+#include "../ProjectAudioIO.h"
 #include "../ProjectSettings.h"
 #include "../Snap.h"
+#include "../ViewInfo.h"
 #include "../AllThemeResources.h"
 
 #if wxUSE_ACCESSIBILITY
@@ -96,6 +99,7 @@ BEGIN_EVENT_TABLE(SelectionBar, ToolBar)
    EVT_TEXT(EndTimeID, SelectionBar::OnChangedTime)
    EVT_CHOICE(SnapToID, SelectionBar::OnSnapTo)
    EVT_CHOICE(ChoiceID, SelectionBar::OnChoice )
+   EVT_IDLE( SelectionBar::OnIdle )
    EVT_COMBOBOX(RateID, SelectionBar::OnRate)
    EVT_TEXT(RateID, SelectionBar::OnRate)
 
@@ -103,8 +107,8 @@ BEGIN_EVENT_TABLE(SelectionBar, ToolBar)
    EVT_COMMAND(wxID_ANY, EVT_CAPTURE_KEY, SelectionBar::OnCaptureKey)
 END_EVENT_TABLE()
 
-SelectionBar::SelectionBar()
-: ToolBar(SelectionBarID, _("Selection"), wxT("Selection")),
+SelectionBar::SelectionBar( AudacityProject &project )
+: ToolBar(project, SelectionBarID, _("Selection"), wxT("Selection")),
   mListener(NULL), mRate(0.0),
   mStart(0.0), mEnd(0.0), mLength(0.0), mCenter(0.0), mAudio(0.0),
   mDrive1( StartTimeID), mDrive2( EndTimeID ),
@@ -578,6 +582,27 @@ void SelectionBar::OnChoice(wxCommandEvent & WXUNUSED(event))
    SelectionModeUpdated();
 }
 
+void SelectionBar::OnIdle( wxIdleEvent &evt )
+{
+   evt.Skip();
+   auto &project = mProject;
+   const auto &selectedRegion = ViewInfo::Get( project ).selectedRegion;
+
+   double audioTime;
+
+   auto &projectAudioIO = ProjectAudioIO::Get( project );
+   if ( projectAudioIO.IsAudioActive() ){
+      auto gAudioIO = AudioIOBase::Get();
+      audioTime = gAudioIO->GetStreamTime();
+   }
+   else {
+      const auto &playRegion = ViewInfo::Get( project ).playRegion;
+      audioTime = playRegion.GetStart();
+   }
+
+   SetTimes(selectedRegion.t0(), selectedRegion.t1(), audioTime);
+}
+
 void SelectionBar::SelectionModeUpdated()
 {
    // We just changed the mode.  Remember it.
@@ -760,3 +785,8 @@ void SelectionBar::OnSnapTo(wxCommandEvent & WXUNUSED(event))
 {
    mListener->AS_SetSnapTo(mSnapTo->GetSelection());
 }
+
+static RegisteredToolbarFactory factory{ SelectionBarID,
+   []( AudacityProject &project ){
+      return ToolBar::Holder{ safenew SelectionBar{ project } }; }
+};
diff --git a/src/toolbars/SelectionBar.h b/src/toolbars/SelectionBar.h
index deee05bd1..0404d5796 100644
--- a/src/toolbars/SelectionBar.h
+++ b/src/toolbars/SelectionBar.h
@@ -40,7 +40,7 @@ class NumericTextCtrl;
 class SelectionBar final : public ToolBar {
 
  public:
-   SelectionBar();
+   SelectionBar( AudacityProject &project );
    virtual ~SelectionBar();
 
    static SelectionBar &Get( AudacityProject &project );
@@ -79,6 +79,7 @@ class SelectionBar final : public ToolBar {
    void OnFocus(wxFocusEvent &event);
    void OnCaptureKey(wxCommandEvent &event);
    void OnSize(wxSizeEvent &evt);
+   void OnIdle( wxIdleEvent &evt );
 
    void ModifySelection(int newDriver, bool done = false);
    void UpdateRates();
diff --git a/src/toolbars/SpectralSelectionBar.cpp b/src/toolbars/SpectralSelectionBar.cpp
index de87a6a04..96c92842f 100644
--- a/src/toolbars/SpectralSelectionBar.cpp
+++ b/src/toolbars/SpectralSelectionBar.cpp
@@ -55,8 +55,10 @@ with changes in the SpectralSelectionBar.
 #include <wx/statline.h>
 
 #include "../Prefs.h"
+#include "../Project.h"
 #include "../AllThemeResources.h"
 #include "../SelectedRegion.h"
+#include "../ViewInfo.h"
 
 #if wxUSE_ACCESSIBILITY
 #include "../widgets/WindowAccessible.h"
@@ -86,13 +88,15 @@ BEGIN_EVENT_TABLE(SpectralSelectionBar, ToolBar)
    EVT_CHOICE(OnChoiceID, SpectralSelectionBar::OnChoice)
    EVT_COMMAND(wxID_ANY, EVT_FREQUENCYTEXTCTRL_UPDATED, SpectralSelectionBar::OnUpdate)
    EVT_COMMAND(wxID_ANY, EVT_BANDWIDTHTEXTCTRL_UPDATED, SpectralSelectionBar::OnUpdate)
+   EVT_IDLE( SpectralSelectionBar::OnIdle )
 END_EVENT_TABLE()
 
 static const wxString preferencePath
 (wxT("/GUI/Toolbars/SpectralSelection/CenterAndWidthChoice"));
 
-SpectralSelectionBar::SpectralSelectionBar()
-: ToolBar(SpectralSelectionBarID, _("Spectral Selection"), wxT("SpectralSelection"))
+SpectralSelectionBar::SpectralSelectionBar( AudacityProject &project )
+: ToolBar( project,
+   SpectralSelectionBarID, _("Spectral Selection"), wxT("SpectralSelection") )
 , mListener(NULL), mbCenterAndWidth(true)
 , mCenter(0.0), mWidth(0.0), mLow(0.0), mHigh(0.0)
 , mCenterCtrl(NULL), mWidthCtrl(NULL), mLowCtrl(NULL), mHighCtrl(NULL)
@@ -368,6 +372,14 @@ void SpectralSelectionBar::OnChoice(wxCommandEvent &)
    Updated();
 }
 
+void SpectralSelectionBar::OnIdle( wxIdleEvent &evt )
+{
+   evt.Skip();
+   auto &project = mProject;
+   const auto &selectedRegion = ViewInfo::Get( project ).selectedRegion;
+   SetFrequencies( selectedRegion.f0(), selectedRegion.f1() );
+}
+
 void SpectralSelectionBar::OnUpdate(wxCommandEvent &evt)
 {
    int index = evt.GetInt();
@@ -491,4 +503,9 @@ void SpectralSelectionBar::SetBandwidthSelectionFormatName(const NumericFormatSy
    }
 }
 
+static RegisteredToolbarFactory factory{ SpectralSelectionBarID,
+   []( AudacityProject &project ){
+      return ToolBar::Holder{ safenew SpectralSelectionBar{ project } }; }
+};
+
 #endif // #ifdef EXPERIMENTAL_SPECTRAL_EDITING
diff --git a/src/toolbars/SpectralSelectionBar.h b/src/toolbars/SpectralSelectionBar.h
index 60377a848..1e2670023 100644
--- a/src/toolbars/SpectralSelectionBar.h
+++ b/src/toolbars/SpectralSelectionBar.h
@@ -29,7 +29,7 @@ class SpectralSelectionBar final : public ToolBar {
 
 public:
 
-   SpectralSelectionBar();
+   SpectralSelectionBar( AudacityProject &project );
    virtual ~SpectralSelectionBar();
 
    static SpectralSelectionBar &Get( AudacityProject &project );
@@ -56,6 +56,7 @@ private:
    void OnUpdate(wxCommandEvent &evt);
    void OnCtrl(wxCommandEvent &evt);
    void OnChoice(wxCommandEvent &evt);
+   void OnIdle( wxIdleEvent &evt );
 
    void OnSize(wxSizeEvent &evt);
 
diff --git a/src/toolbars/ToolBar.cpp b/src/toolbars/ToolBar.cpp
index 2368d9add..a3bb38d08 100644
--- a/src/toolbars/ToolBar.cpp
+++ b/src/toolbars/ToolBar.cpp
@@ -314,11 +314,13 @@ END_EVENT_TABLE()
 //
 // Constructor
 //
-ToolBar::ToolBar( int type,
+ToolBar::ToolBar( AudacityProject &project,
+                  int type,
                   const wxString &label,
                   const wxString &section,
                   bool resizable )
 : wxPanelWrapper()
+, mProject{ project }
 {
    // Save parameters
    mType = type;
@@ -842,10 +844,11 @@ void ToolBar::MakeAlternateImages(AButton &button, int idx,
 }
 
 void ToolBar::SetButtonToolTip
-(AButton &button, const TranslatedInternalString commands[], size_t nCommands)
+(AudacityProject &theProject,
+ AButton &button, const TranslatedInternalString commands[], size_t nCommands)
 {
    wxString result;
-   const auto project = GetActiveProject();
+   const auto project = &theProject;
    const auto commandManager =
       project ? &CommandManager::Get( *project ) : nullptr;
    if (commandManager)
@@ -913,3 +916,25 @@ int ToolBar::GetResizeGrabberWidth()
 {
    return RWIDTH;
 }
+
+namespace {
+
+RegisteredToolbarFactory::Functions &GetFunctions()
+{
+   static RegisteredToolbarFactory::Functions factories( ToolBarCount );
+   return factories;
+}
+
+}
+
+RegisteredToolbarFactory::RegisteredToolbarFactory(
+   int id, const Function &function)
+{
+   wxASSERT( id >= 0 && id < ToolBarCount );
+   GetFunctions()[ id ] = function;
+}
+
+auto RegisteredToolbarFactory::GetFactories() -> const Functions&
+{
+   return GetFunctions();
+}
diff --git a/src/toolbars/ToolBar.h b/src/toolbars/ToolBar.h
index beb6f2ae9..4af8c8ef0 100644
--- a/src/toolbars/ToolBar.h
+++ b/src/toolbars/ToolBar.h
@@ -15,12 +15,14 @@
 
 #include "../Experimental.h"
 
+#include <functional>
 #include <vector>
 #include <wx/defs.h>
 
 #include "../Prefs.h"
 #include "../Theme.h"
 #include "../widgets/wxPanelWrapper.h" // to inherit
+#include <wx/windowptr.h>
 
 class wxBoxSizer;
 class wxDC;
@@ -85,6 +87,8 @@ enum
 // How may pixels padding each side of a floating toolbar
 enum { ToolBarFloatMargin = 1 };
 
+class AudacityProject;
+
 class ToolBar /* not final */
 : public wxPanelWrapper
 , protected PrefsListener
@@ -92,9 +96,11 @@ class ToolBar /* not final */
 
  public:
 
-   using Holder = Destroy_ptr<ToolBar>;
+   using Holder = wxWindowPtr<ToolBar>;
 
-   ToolBar(int type, const wxString & label, const wxString & section, bool resizable = false);
+   ToolBar( AudacityProject &project,
+      int type, const wxString & label, const wxString & section,
+      bool resizable = false);
    virtual ~ToolBar();
 
    bool AcceptsFocus() const override { return false; };
@@ -160,7 +166,7 @@ class ToolBar /* not final */
 
    static
    void SetButtonToolTip
-      (AButton &button,
+      (AudacityProject &project, AButton &button,
        // If a shortcut key is defined for the command, then it is appended,
        // parenthesized, after the translated name.
        const TranslatedInternalString commands[], size_t nCommands);
@@ -214,6 +220,7 @@ class ToolBar /* not final */
    void OnMouseEvents(wxMouseEvent &event);
 
  protected:
+   AudacityProject &mProject;
    wxString mLabel;
    wxString mSection;
    int mType;
@@ -239,4 +246,13 @@ class ToolBar /* not final */
    friend class ToolBarResizer;
 };
 
+struct RegisteredToolbarFactory {
+   using Function = std::function< ToolBar::Holder( AudacityProject & ) >;
+   using Functions = std::vector< Function >;
+
+   RegisteredToolbarFactory( int id, const Function &function );
+
+   static const Functions &GetFactories();
+};
+
 #endif
diff --git a/src/toolbars/ToolManager.cpp b/src/toolbars/ToolManager.cpp
index 9233bfe5d..35e2d79e9 100644
--- a/src/toolbars/ToolManager.cpp
+++ b/src/toolbars/ToolManager.cpp
@@ -52,17 +52,6 @@
 #include <wx/minifram.h>
 #include <wx/popupwin.h>
 
-#include "ControlToolBar.h"
-#include "DeviceToolBar.h"
-#include "EditToolBar.h"
-#include "MeterToolBar.h"
-#include "MixerToolBar.h"
-#include "ScrubbingToolBar.h"
-#include "SelectionBar.h"
-#include "SpectralSelectionBar.h"
-#include "ToolsToolBar.h"
-#include "TranscriptionToolBar.h"
-
 #include "../AColor.h"
 #include "../AllThemeResources.h"
 #include "../ImageManipulation.h"
@@ -429,20 +418,16 @@ ToolManager::ToolManager( AudacityProject *parent, wxWindow *topDockParent )
    // Create all of the toolbars
    // All have the project as parent window
    wxASSERT(parent);
-   mBars[ ToolsBarID ]         =  ToolBar::Holder{ safenew ToolsToolBar() };
-   mBars[ TransportBarID ]     =  ToolBar::Holder{ safenew ControlToolBar() };
-   mBars[ RecordMeterBarID ]   =  ToolBar::Holder{ safenew MeterToolBar( parent, RecordMeterBarID ) };
-   mBars[ PlayMeterBarID ]     =  ToolBar::Holder{ safenew MeterToolBar( parent, PlayMeterBarID ) };
-   mBars[ MeterBarID ]         =  ToolBar::Holder{ safenew MeterToolBar( parent, MeterBarID ) };
-   mBars[ EditBarID ]          =  ToolBar::Holder{ safenew EditToolBar() };
-   mBars[ MixerBarID ]         =  ToolBar::Holder{ safenew MixerToolBar() };
-   mBars[ TranscriptionBarID ] =  ToolBar::Holder{ safenew TranscriptionToolBar() };
-   mBars[ SelectionBarID ]     =  ToolBar::Holder{ safenew SelectionBar() };
-   mBars[ DeviceBarID ]        =  ToolBar::Holder{ safenew DeviceToolBar() };
-#ifdef EXPERIMENTAL_SPECTRAL_EDITING
-   mBars[SpectralSelectionBarID] =  ToolBar::Holder{ safenew SpectralSelectionBar() };
-#endif
-   mBars[ ScrubbingBarID ]     =  ToolBar::Holder{ safenew ScrubbingToolBar() };
+
+   size_t ii = 0;
+   for (const auto &factory : RegisteredToolbarFactory::GetFactories()) {
+      if (factory) {
+         mBars[ii] = factory( *parent );
+      }
+      else
+         wxASSERT( false );
+      ++ii;
+   }
 
    // We own the timer
    mTimer.SetOwner( this );
diff --git a/src/toolbars/ToolsToolBar.cpp b/src/toolbars/ToolsToolBar.cpp
index 23a744740..6f10f4549 100644
--- a/src/toolbars/ToolsToolBar.cpp
+++ b/src/toolbars/ToolsToolBar.cpp
@@ -71,8 +71,8 @@ BEGIN_EVENT_TABLE(ToolsToolBar, ToolBar)
 END_EVENT_TABLE()
 
 //Standard constructor
-ToolsToolBar::ToolsToolBar()
-: ToolBar(ToolsBarID, _("Tools"), wxT("Tools"))
+ToolsToolBar::ToolsToolBar( AudacityProject &project )
+: ToolBar(project, ToolsBarID, _("Tools"), wxT("Tools"))
 {
    //Read the following wxASSERTs as documentating a design decision
    wxASSERT( selectTool   == selectTool   - firstTool );
@@ -148,7 +148,8 @@ void ToolsToolBar::RegenerateTooltips()
    for (const auto &entry : table) {
       TranslatedInternalString command{
          entry.commandName, wxGetTranslation(entry.untranslatedLabel) };
-      ToolBar::SetButtonToolTip( *mTool[entry.tool], &command, 1u );
+      ToolBar::SetButtonToolTip( mProject,
+         *mTool[entry.tool], &command, 1u );
    }
 
    #endif
@@ -276,3 +277,8 @@ void ToolsToolBar::Create(wxWindow * parent)
    ToolBar::Create(parent);
    UpdatePrefs();
 }
+
+static RegisteredToolbarFactory factory{ ToolsBarID,
+   []( AudacityProject &project ){
+      return ToolBar::Holder{ safenew ToolsToolBar{ project } }; }
+};
diff --git a/src/toolbars/ToolsToolBar.h b/src/toolbars/ToolsToolBar.h
index c65a67d8d..66bf51006 100644
--- a/src/toolbars/ToolsToolBar.h
+++ b/src/toolbars/ToolsToolBar.h
@@ -49,7 +49,7 @@ class ToolsToolBar final : public ToolBar {
 
  public:
 
-   ToolsToolBar();
+   ToolsToolBar( AudacityProject &project );
    virtual ~ToolsToolBar();
 
    static ToolsToolBar &Get( AudacityProject &project );
diff --git a/src/toolbars/TranscriptionToolBar.cpp b/src/toolbars/TranscriptionToolBar.cpp
index 75417d5bc..53d3bdd32 100644
--- a/src/toolbars/TranscriptionToolBar.cpp
+++ b/src/toolbars/TranscriptionToolBar.cpp
@@ -35,7 +35,7 @@
 
 #include "ControlToolBar.h"
 #include "../AllThemeResources.h"
-#include "../AudioIOBase.h"
+#include "../AudioIO.h"
 #include "../ImageManipulation.h"
 #include "../KeyboardCapture.h"
 #include "../Project.h"
@@ -94,8 +94,9 @@ END_EVENT_TABLE()
    ;   //semicolon enforces  proper automatic indenting in emacs.
 
 ////Standard Constructor
-TranscriptionToolBar::TranscriptionToolBar()
-: ToolBar(TranscriptionBarID, _("Play-at-Speed"), wxT("Transcription"),true)
+TranscriptionToolBar::TranscriptionToolBar( AudacityProject &project )
+: ToolBar( project,
+   TranscriptionBarID, _("Play-at-Speed"), wxT("Transcription"), true )
 {
    mPlaySpeed = 1.0 * 100.0;
 #ifdef EXPERIMENTAL_VOICE_DETECTION
@@ -288,8 +289,20 @@ void TranscriptionToolBar::Populate()
 
 void TranscriptionToolBar::EnableDisableButtons()
 {
+   AudacityProject *p = &mProject;
+
+   auto gAudioIO = AudioIO::Get();
+   bool canStopAudioStream = (!gAudioIO->IsStreamActive() ||
+           gAudioIO->IsMonitoring() ||
+           gAudioIO->GetOwningProject() == p );
+   bool recording = gAudioIO->GetNumCaptureChannels() > 0;
+
+   // Only interested in audio type tracks
+   bool tracks = p && TrackList::Get( *p ).Any<AudioTrack>(); // PRL:  PlayableTrack ?
+   SetEnabled( canStopAudioStream && tracks && !recording );
+
 #ifdef EXPERIMENTAL_VOICE_DETECTION
-   AudacityProject *p = GetActiveProject();
+   AudacityProject *p = &mProject;
    if (!p) return;
    // Is anything selected?
    auto selection = p->GetSel0() < p->GetSel1() && p->GetTracks()->Selected();
@@ -331,7 +344,8 @@ void TranscriptionToolBar::RegenerateTooltips()
          { entry.commandName,  wxGetTranslation(entry.untranslatedLabel)  },
          { entry.commandName2, wxGetTranslation(entry.untranslatedLabel2) },
       };
-      ToolBar::SetButtonToolTip( *mButtons[entry.tool], commands, 2u );
+      ToolBar::SetButtonToolTip( mProject,
+         *mButtons[entry.tool], commands, 2u );
    }
 
 #ifdef EXPERIMENTAL_VOICE_DETECTION
@@ -410,7 +424,7 @@ void TranscriptionToolBar::GetSamples(
    // GetSamples attempts to translate the start and end selection markers into sample indices
    // These selection numbers are doubles.
 
-   AudacityProject *p = GetActiveProject();
+   AudacityProject *p = &mProject;
    if (!p) {
       return;
    }
@@ -453,7 +467,7 @@ void TranscriptionToolBar::GetSamples(
 void TranscriptionToolBar::PlayAtSpeed(bool looped, bool cutPreview)
 {
    // Can't do anything without an active project
-   AudacityProject * p = GetActiveProject();
+   AudacityProject *p = &mProject;
    if (!p) {
       return;
    }
@@ -560,7 +574,7 @@ void TranscriptionToolBar::OnStartOn(wxCommandEvent & WXUNUSED(event))
    }
 
    mVk->AdjustThreshold(GetSensitivity());
-   AudacityProject *p = GetActiveProject();
+   AudacityProject *p = &mProject;
 
    auto t = *p->GetTracks()->Any< const WaveTrack >().begin();
    if(t ) {
@@ -592,7 +606,7 @@ void TranscriptionToolBar::OnStartOff(wxCommandEvent & WXUNUSED(event))
       return;
    }
    mVk->AdjustThreshold(GetSensitivity());
-   AudacityProject *p = GetActiveProject();
+   AudacityProject *p = &mProject;
 
    SetButton(false, mButtons[TTB_StartOff]);
    auto t = *p->GetTracks()->Any< const WaveTrack >().begin();
@@ -627,7 +641,7 @@ void TranscriptionToolBar::OnEndOn(wxCommandEvent & WXUNUSED(event))
    }
 
    mVk->AdjustThreshold(GetSensitivity());
-   AudacityProject *p = GetActiveProject();
+   AudacityProject *p = &mProject;
    auto t = *p->GetTracks()->Any< const WaveTrack >().begin();
    if(t) {
       auto wt = static_cast<const WaveTrack*>(t);
@@ -662,7 +676,7 @@ void TranscriptionToolBar::OnEndOff(wxCommandEvent & WXUNUSED(event))
       return;
    }
    mVk->AdjustThreshold(GetSensitivity());
-   AudacityProject *p = GetActiveProject();
+   AudacityProject *p = &mProject;
 
    auto t = *p->GetTracks()->Any< const WaveTrack >().begin();
    if(t) {
@@ -699,7 +713,7 @@ void TranscriptionToolBar::OnSelectSound(wxCommandEvent & WXUNUSED(event))
 
 
    mVk->AdjustThreshold(GetSensitivity());
-   AudacityProject *p = GetActiveProject();
+   AudacityProject *p = &mProject;
 
 
    TrackList *tl = p->GetTracks();
@@ -738,7 +752,7 @@ void TranscriptionToolBar::OnSelectSilence(wxCommandEvent & WXUNUSED(event))
    }
 
    mVk->AdjustThreshold(GetSensitivity());
-   AudacityProject *p = GetActiveProject();
+   AudacityProject *p = &mProject;
 
 
    TrackList *tl = p->GetTracks();
@@ -777,7 +791,7 @@ void TranscriptionToolBar::OnCalibrate(wxCommandEvent & WXUNUSED(event))
    }
 
 
-   AudacityProject *p = GetActiveProject();
+   AudacityProject *p = &mProject;
 
    TrackList *tl = p->GetTracks();
    if(auto wt = *tl->Any<const WaveTrack>().begin()) {
@@ -828,7 +842,7 @@ void TranscriptionToolBar::OnAutomateSelection(wxCommandEvent & WXUNUSED(event))
    wxBusyCursor busy;
 
    mVk->AdjustThreshold(GetSensitivity());
-   AudacityProject *p = GetActiveProject();
+   AudacityProject *p = &mProject;
    TrackList *tl = p->GetTracks();
    if(auto wt = *tl->Any<const WaveTrack>().begin()) {
       sampleCount start, len;
@@ -899,7 +913,7 @@ void TranscriptionToolBar::OnAutomateSelection(wxCommandEvent & WXUNUSED(event))
 
 void TranscriptionToolBar::OnMakeLabel(wxCommandEvent & WXUNUSED(event))
 {
-   AudacityProject *p = GetActiveProject();
+   AudacityProject *p = &mProject;
    SetButton(false, mButtons[TTB_MakeLabel]);
    p->DoAddLabel(SelectedRegion(p->GetSel0(),  p->GetSel1()));
 }
@@ -980,3 +994,7 @@ void TranscriptionToolBar::AdjustPlaySpeed(float adj)
    OnSpeedSlider(e);
 }
 
+static RegisteredToolbarFactory factory{ TranscriptionBarID,
+   []( AudacityProject &project ){
+      return ToolBar::Holder{ safenew TranscriptionToolBar{ project } }; }
+};
diff --git a/src/toolbars/TranscriptionToolBar.h b/src/toolbars/TranscriptionToolBar.h
index 3d9f687ae..bc19a9329 100644
--- a/src/toolbars/TranscriptionToolBar.h
+++ b/src/toolbars/TranscriptionToolBar.h
@@ -65,7 +65,7 @@ class TranscriptionToolBar final : public ToolBar {
 
  public:
 
-   TranscriptionToolBar();
+   TranscriptionToolBar( AudacityProject &project );
    virtual ~TranscriptionToolBar();
 
    static TranscriptionToolBar &Get( AudacityProject &project );