-% dynamic dir? text script, articulation script dir?
-oneVoice = #(context-spec-music (make-voice-props-revert) "Voice")
-voiceOne = #(context-spec-music (make-voice-props-set 0) "Voice")
-voiceTwo = #(context-spec-music (make-voice-props-set 1) "Voice")
-voiceThree =#(context-spec-music (make-voice-props-set 2) "Voice")
-voiceFour = #(context-spec-music (make-voice-props-set 3) "Voice")
-
-% There's also dash, but setting dash period/length should be fixed.
-slurDotted = \property Voice.Slur \set #'dashed = #1
-slurSolid = \property Voice.Slur \revert #'dashed
-tieDotted = \property Voice.Tie \set #'dashed = #1
-tieSolid = \property Voice.Tie \revert #'dashed
+% dynamic ly:dir? text script, articulation script ly:dir?
+oneVoice = #(context-spec-music (make-voice-props-revert) 'Voice)
+voiceOne = #(context-spec-music (make-voice-props-set 0) 'Voice)
+voiceTwo = #(context-spec-music (make-voice-props-set 1) 'Voice)
+voiceThree =#(context-spec-music (make-voice-props-set 2) 'Voice)
+voiceFour = #(context-spec-music (make-voice-props-set 3) 'Voice)