1 \score { \notes \relative c{
3 \property Voice.noteHeadStyle = "diamond"
5 \property Voice.noteHeadStyle = "transparent"
7 \property Voice.noteHeadStyle = "cross"
9 \property Voice.noteHeadStyle = "harmonic"
12 \context ThreadedVoice <
14 { \property Thread.noteHeadStyle = "cross"
15 \property ThreadedVoice.ydirection = \up c16}
17 { \property Thread.noteHeadStyle = "" a16 }
20 { \property Thread.noteHeadStyle = "harmonic" d16 }
28 \remove Note_heads_engraver;
34 \accepts ThreadedVoice;
37 \type Engraver_group_engraver;
38 \consists Note_heads_engraver;