Flute slap notation
It is possible to indicate special articulation techniques such as a
flute “tongue slap” by replacing the note head with the appropriate
glyph. For that we can draw the accent-like note head with
\markup
.
slap =
#(define-music-function (music) (ly:music?)
#{
\temporary \override NoteHead.stencil = #ly:text-interface::print
\temporary \override NoteHead.text =
\markup
\translate #'(1 . 0)
\override #'(thickness . 1.4)
\overlay {
\draw-line #'(-1.2 . 0.4)
\draw-line #'(-1.2 . -0.4)
}
\temporary \override NoteHead.stem-attachment =
#(lambda (grob)
(let* ((stem (ly:grob-object grob 'stem))
(dir (ly:grob-property stem 'direction UP))
(is-up (eqv? dir UP)))
(cons dir (if is-up 0 -0.8))))
#music
\revert NoteHead.stencil
\revert NoteHead.text
\revert NoteHead.stem-attachment
#})
\relative c' {
c4 \slap c d r
\slap { g4 a } b r
}