Issue 5167/6: Changes: show \markup xxx = ... \etc assignments

[lilypond.git] / lily / include / audio-staff.hh

diff --git a/lily/include/audio-staff.hh b/lily/include/audio-staff.hh
index f7f42003460eae2870a21807bbe60130c5e27b69..a4a9d8a0d1386a9fc87e2446ba107fecefb2f54a 100644 (file)
--- a/lily/include/audio-staff.hh
+++ b/lily/include/audio-staff.hh
@@ -1,7 +1,7 @@
 /*
   This file is part of LilyPond, the GNU music typesetter.
 
-  Copyright (C) 1996--2014 Jan Nieuwenhuizen <janneke@gnu.org>
+  Copyright (C) 1996--2015 Jan Nieuwenhuizen <janneke@gnu.org>
 
   LilyPond is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -36,4 +36,10 @@ struct Audio_staff : public Audio_element
   vector<Audio_item *> audio_items_;
 };
 
+// Subtype to identify a staff that represents the "control track" of a MIDI
+// sequence (created by Control_track_performer).
+struct Audio_control_track_staff : public Audio_staff
+{
+};
+
 #endif // AUDIO_STAFF_HH