Improvisation is sometimes denoted with slashed note heads, where the performer may choose any pitch but should play the specified rhythm. Such note heads can be created:

\new Voice \with {
  \consists Pitch_squash_engraver
} \relative {
  e''8 e g a a16( bes) a8 g
  e8 ~
  2 ~ 8 f4 f8 ~
  a16( bes) a8 g e

[image of music]

Predefined commands

\improvisationOn, \improvisationOff.

See also

Snippets: Pitches.

Internals Reference: Pitch_squash_engraver, Voice, RhythmicStaff.

LilyPond — Notation Reference v2.25.8 (development-branch).