(ly:add-interface
'only-prebreak-interface
"Kill this grob after the line breaking process."
- '() )
+ '())
(ly:add-interface
'piano-pedal-interface
"An interface for any notes set in a tablature staff"
'())
+
+(ly:add-interface
+ 'vertically-spaceable-interface
+ "Objects that should be kept at constant vertical distances. Typically:
+@internalsref{VerticalAxisGroup} objects of @internalsref{Staff} contexts."
+ '())