X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fmidi-chunk.cc;h=625781dc5a44ad55902fcc4ff07646ede6d8be1c;hb=93b7a6ff072d73dcdd41da59cd18da8aa8d8e8cb;hp=9c2a4bdf100caa46ed90e19b5a4f8dc8b007131a;hpb=41bf7534250b6f0b60d74d082b5dfc26a5387144;p=lilypond.git

diff --git a/lily/midi-chunk.cc b/lily/midi-chunk.cc
index 9c2a4bdf10..625781dc5a 100644
--- a/lily/midi-chunk.cc
+++ b/lily/midi-chunk.cc
@@ -110,7 +110,8 @@ Midi_event::to_string () const
 {
   string delta_string = int2midi_varint_string (delta_ticks_);
   string midi_string = midi_->to_string ();
-  assert (midi_string.length ());
+  if (midi_string.empty ())
+    return "";
   return delta_string + midi_string;
 }
 /****************************************************************