Allow other types of staves than only Staff inside a GrandStaff...

diff --git a/ly/engraver-init.ly b/ly/engraver-init.ly
index 0720893ffc725fb0157dcab101b54310dcb48612..5a73bbb9cd5132e1ab2863824681eef14e1e257a 100644 (file)
--- a/ly/engraver-init.ly
+++ b/ly/engraver-init.ly
@@ -323,6 +323,10 @@ contained staves are connected vertically."
 
   \defaultchild "Staff"
   \accepts "Staff"
+  \accepts "RhythmicStaff"
+  \accepts "DrumStaff"
+  \accepts "TabStaff"
+  \accepts "Lyrics"
   \accepts "FiguredBass"
   \accepts "Dynamics"
   \accepts "ChordNames"