A preference governs where the pinned head goes, not always exact center

src/prefs/TracksPrefs.cpp

@@ -42,6 +42,16 @@ namespace {
    {
       return false;
    }
+   
+   const wxChar *PinnedHeadPositionPreferenceKey()
+   {
+      return wxT("/AudioIO/PinnedHeadPosition");
+   }
+
+   double PinnedHeadPositionPreferenceDefault()
+   {
+      return 0.5;
+   }
 }
 
 
@@ -324,6 +334,21 @@ void TracksPrefs::SetPinnedHeadPreference(bool value, bool flush)
       gPrefs->Flush();
 }
 
+double TracksPrefs::GetPinnedHeadPositionPreference()
+{
+   auto value = gPrefs->ReadDouble(
+      PinnedHeadPositionPreferenceKey(),
+      PinnedHeadPositionPreferenceDefault());
+   return std::max(0.0, std::min(1.0, value));
+}
+
+void TracksPrefs::SetPinnedHeadPositionPreference(double value, bool flush)
+{
+   gPrefs->Write(PinnedHeadPositionPreferenceKey(), value);
+   if(flush)
+      gPrefs->Flush();
+}
+
 wxString TracksPrefs::GetDefaultAudioTrackNamePreference()
 {
    const auto name =