From d9af50449d31494e2d754085d1e0c8ca45554f86 Mon Sep 17 00:00:00 2001
From: Paul Davis <paul@linuxaudiosystems.com>
Date: Fri, 7 Nov 2025 09:15:53 -0700
Subject: [PATCH] play transposed notes/chords (if requested)

---
 gtk2_ardour/midi_view.cc | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/gtk2_ardour/midi_view.cc b/gtk2_ardour/midi_view.cc
index a219df1e84..054620459e 100644
--- a/gtk2_ardour/midi_view.cc
+++ b/gtk2_ardour/midi_view.cc
@@ -3814,6 +3814,8 @@ MidiView::change_velocities (bool up, bool fine, bool allow_smush, bool all_toge
 void
 MidiView::transpose (bool up, bool fine, bool allow_smush)
 {
+	typedef vector<std::shared_ptr<NoteType> > PossibleChord;
+
 	if (_selection.empty()) {
 		return;
 	}
@@ -3864,6 +3866,26 @@ MidiView::transpose (bool up, bool fine, bool allow_smush)
 		_midi_context.maybe_extend_note_range (lowest);
 		_midi_context.maybe_extend_note_range (highest);
 	}
+
+	if (!_no_sound_notes && UIConfiguration::instance().get_sound_midi_notes()) {
+		if (_selection.size() == 1) {
+			start_playing_midi_note ((*(_selection.begin()))->note());
+		} else {
+			Temporal::Beats earliest = earliest_in_selection();
+			PossibleChord to_play;
+
+			/* Only play the notes in the first transposed chord or
+			 * the earliest note.
+			 */
+
+			for (auto & nb : _selection) {
+				if (nb->note()->time() == earliest) {
+					to_play.push_back (nb->note());
+				}
+			}
+			start_playing_midi_chord (to_play);
+		}
+	}
 }
 
 void