(_i "Print @var{note} with a triangle-shaped note head.")
(style-note-heads 'NoteHead 'do note))
+%% part combiner
+
+partcombineForce =
+#(define-music-function (type) ((symbol?))
+ (_i "Override the part-combiner.")
+ (if type (propertySet 'partCombineForced type)
+ (propertyUnset 'partCombineForced)))
+
+partcombineApart = \partcombineForce #'apart
+partcombineChords = \partcombineForce #'chords
+partcombineUnisono = \partcombineForce #'unisono
+partcombineSoloI = \partcombineForce #'solo1
+partcombineSoloII = \partcombineForce #'solo2
+partcombineAutomatic = \partcombineForce \default
+
%% phrasing slurs