Am 24.03.2015 um 19:39 schrieb st...@linuxsuite.org:
Howdy!
I have reduced a multivoice structure that is part of a
composition to a simple five bar example of voice splitting.
I need 4 voices, and then I need one voice to split.
Each bar shows a different behaviour depending on the first voice
bar 1 - seems ok
bar 2 - seems ok and NoteColumn.force-hshift works in voicethree
bar 3 - a quarter note on beat 3 in voiceone causes a collision in
voicethree and NoteColumn.force-hshift doesn't work
bar 4 - a simple white harmonic in voiceone creates the same
condition as bar 3
bar 5 - use of Staff.NoteHead.style = #'harmonic-black in
voiceone causes
notes in voicethree to change to black harmonics
http://www.gooeytar.com/projects/test/test.pdf
Obviously, voiceone is messing with the "new voice" in voice three.
What is the correct way to do this in LilyPond??
Well, indeed that seems to be a complicated case. However, if you just
follow the relevant NR section at
<http://lilypond.org/doc/v2.18/Documentation/notation/multiple-voices#collision-resolution>,
it all works as expected (see attachment). Careful doc reading helps…
HTH, Simon
thanx - steve
\version "2.18.2"
H = \once \override Staff.NoteHead.style = #'harmonic-black
voiceone = \relative c'' {
\clef "G_8"
\time 4/4
\key g \major
b4 b2 r4 |
b4 b4 r r |
b4 b b b |
b4 b b\harmonic b |
b4 b \H b b |
}
voicetwo = \relative c {
\set harmonicDots = ##t
e'8\rest d2..\harmonic |
e8\rest d2..\harmonic |
e8\rest d2..\harmonic |
e8\rest d2..\harmonic |
e8\rest d2..\harmonic |
}
voicethree = \relative c' {
<<
\new Voice % needed or voiceone and three are fused
{
s4 g4^~ g2 | s4 g4^~ g2 |
s4 g4^~ g2 | s4 g4^~ g2 | s4 g4^~ g2 |
}
% \\
\new Voice
{
\stemDown
g4\rest g4 fis2 |
g4\rest g4
\once \override NoteColumn.force-hshift = #2.0 % to prove it works
here
fis2 |
g4\rest g4
\once \override NoteColumn.force-hshift = #2.0 % doesn't work
here
fis2 |
g4\rest g4 fis2 |
g4\rest g4 fis2 |
}
>>
}
voicefour = \relative c {
c1 | c1 | c1 | c1 | c1
}
guitar = << \voiceone \\ \voicetwo \\ \voicethree \\ \voicefour >>
#(set-global-staff-size 19)
\score { \new Staff \guitar }
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\version "2.18.2"
H = \once \override Staff.NoteHead.style = #'harmonic-black
voiceFive = #(context-spec-music (make-voice-props-set 4) 'Voice)
voiceSix = #(context-spec-music (make-voice-props-set 5) 'Voice)
voiceone = \relative c'' {
\voiceOne
\clef "G_8"
\time 4/4
\key g \major
b4 b2 r4 |
b4 b4 r r |
b4 b b b |
b4 b b\harmonic b |
b4 b \H b b |
}
voicetwo = \relative c {
c1 | c1 | c1 | c1 | c1
}
noShift = \once\override NoteColumn.force-hshift = 0
voicethree = \relative c' {
% save typing with \repeat â¦
\repeat unfold 5 { s4 \noShift g4^~ g2 | }
}
voicefour = \relative c' {
\voiceFour
g4\rest g4 fis2 |
g4\rest g4
% no more force-shifting needed
%\once \override NoteColumn.force-hshift = #2.0 % to prove it works here
fis2 |
g4\rest g4
%\once \override NoteColumn.force-hshift = #2.0 % doesn't work here
fis2 |
g4\rest g4 fis2 |
g4\rest g4 fis2 |
}
voicefive = \relative c {
% use 5 to make stems go up, 6 to make them go down
%\voiceFive
\voiceSix
\set harmonicDots = ##t
e'8\rest d2..\harmonic |
e8\rest d2..\harmonic |
e8\rest d2..\harmonic |
e8\rest d2..\harmonic |
e8\rest d2..\harmonic |
}
guitar = << \voiceone \\ \voicetwo \\ \voicethree \\ \voicefour \\ \voicefive >>
#(set-global-staff-size 19)
\score {
\new Staff \guitar
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