Add string-or-music? predicate

[lilypond.git] / scm / c++.scm

diff --git a/scm/c++.scm b/scm/c++.scm
index ded5e9b1209bc0c0be4627db018962d7196eb0f1..444a3e9ba6534b9201c26937785bcbb4fc9e6a5d 100644 (file)
--- a/scm/c++.scm
+++ b/scm/c++.scm
@@ -57,6 +57,9 @@
 (define-public (string-or-pair? x)
   (or (string? x) (pair? x)))
 
+(define-public (string-or-music? x)
+  (or (string? x) (ly:music? x)))
+
 (define-public (number-or-pair? x)
   (or (number? x) (pair? x)))