Doc: Usage 1.2 - Added note about using wildcards

[lilypond.git] / lily / music.cc

diff --git a/lily/music.cc b/lily/music.cc
index c19c56a1ae660021bc76f710ed37756ee1af8042..46376ee5ed48c3ce97df4c694cb691d3f7512c15 100644 (file)
--- a/lily/music.cc
+++ b/lily/music.cc
@@ -90,7 +90,7 @@ Moment
 Music::get_length () const
 {
   SCM lst = get_property ("length");
-  if (Moment::unsmob (lst))
+  if (Moment::is_smob (lst))
     return *Moment::unsmob (lst);
 
   if (ly_is_procedure (length_callback_))