I'm working on a percussion piece in which the performers play, in addition to unpitched percussion instruments, roto toms, which they occasionally play with one hand while adjusting the pitch of the other in order to achieve a glissando effect. Only the direction, maxima, and minima of the glissando is important, not the specific pitch at a given moment, so when this effect is used the performers would prefer to switch from a 5-line percussion staff to a 1-line staff indicating the rhythm and drawing the glissando direction.
Below is what I have so far. I'm happy with the transition to a 1-line staff
and the notation of rhythm with headless stems, but the gliss line does not
render. It makes sense that the gliss line would not render; since this is a
DrumStaff the notes do not represent pitches, making a glissando meaningless.
However, I do want to use a DrumStaff for the upitched passages, and I'm not
sure how to turn DrumStaff into a Staff in the middle of the music.
Can anyone suggest (a) a better approach than what I'm trying or (b) a hack to
make the glissando engraver draw glissandi between noteheads that Lilypond does
not think represent pitches?
Thanks,
Mason
--------------------------------------------------------------------
\version "2.19.82"
drumPitchNames.cy = #'cymbal
drumPitchNames.br = #'brakedrum
drumPitchNames.to = #'tom
drumPitchNames.ro = #'rototom
drumPitchNames.rt = #'rototomtop
drumPitchNames.ba = #'bassdrum
drumPitchNames.ta = #'tamtam
#(define drumstaff
'((cymbal xcircle #f 3)
(brakedrum cross #f 1)
(tom default #f -1)
(rototom default #f 0)
(rototomtop default #f 4)
(timpani default #f -4)
(bassdrum default #f -3)
(tamtam harmonic-mixed #f -3)))
rotogliss = {
\stopStaff
\override Staff.StaffSymbol.line-positions = #'(0)
\startStaff
}
normalstaff = {
\stopStaff
\revert Staff.StaffSymbol.line-positions
\startStaff
}
glon = {
\override NoteColumn.glissando-skip = ##t
\hide NoteHead
}
gloff = {
\revert NoteColumn.glissando-skip
\undo \hide NoteHead
}
notes = \drummode {
ba4 r <ro cy> <ro cy> |
to16 to to to <to ro>8 <to ro> ro ro ro ro |
\rotogliss
ro \glissando \glon ro ro ro ro ro ro ro |
\gloff rt16 rt rt rt rt8 \glissando \glon ro ro ro ro ro |
ro ro ro ro \gloff \normalstaff ro ro ro ro |
}
\score {
\new DrumStaff
\with {
drumStyleTable = #(alist->hash-table drumstaff)
}
\notes
\layout {}
}
--------------------------------------------------------------------
signature.asc
Description: PGP signature
_______________________________________________ lilypond-user mailing list lilypond-user@gnu.org https://lists.gnu.org/mailman/listinfo/lilypond-user
