diff --git a/src/Project.cpp b/src/Project.cpp
index f06ceddd9..60f0f909a 100644
--- a/src/Project.cpp
+++ b/src/Project.cpp
@@ -4618,12 +4618,6 @@ int AudacityProject::TP_GetCurrentTool()
 
 
 
-// TrackPanel callback method
-void AudacityProject::TP_OnPlayKey()
-{
-   OnPlayStop();
-}
-
 // TrackPanel callback method
 void AudacityProject::TP_PushState(wxString desc, wxString shortDesc,
                                    int flags)
diff --git a/src/Project.h b/src/Project.h
index 144396756..93c5fcad9 100644
--- a/src/Project.h
+++ b/src/Project.h
@@ -399,7 +399,6 @@ class AUDACITY_DLL_API AudacityProject:  public wxFrame,
    virtual ToolsToolBar * TP_GetToolsToolBar();
    virtual ControlToolBar * TP_GetControlToolBar();
 
-   virtual void TP_OnPlayKey();
    virtual void TP_PushState(wxString longDesc, wxString shortDesc,
                              int flags);
    virtual void TP_ModifyState(bool bWantsAutoSave);    // if true, writes auto-save file. Should set only if you really want the state change restored after
diff --git a/src/TrackPanelListener.h b/src/TrackPanelListener.h
index 6a2650ff1..8d321276b 100644
--- a/src/TrackPanelListener.h
+++ b/src/TrackPanelListener.h
@@ -27,7 +27,6 @@ class AUDACITY_DLL_API TrackPanelListener {
    virtual ToolsToolBar * TP_GetToolsToolBar() = 0;
    virtual ControlToolBar * TP_GetControlToolBar() = 0;
 
-   virtual void TP_OnPlayKey() = 0;
    virtual void TP_PushState(wxString shortDesc, wxString longDesc,
                             int flags = PUSH_AUTOSAVE) = 0;
    virtual void TP_ModifyState(bool bWantsAutoSave) = 0;    // if true, writes auto-save file. Should set only if you really want the state change restored after