Re: Notes in voiceone corrupt voicethree after voice splitting?

[steve]

>
>   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.

         I managed to improve it by adding voices, but the black harmonics
still corrupt the other voice

    http://gooeytar.com/projects/test/test.ly
    http://gooeytar.com/projects/test/test.pdf

voiceFive = #(context-spec-music (make-voice-props-set 4) 'Voice)
voiceSix = #(context-spec-music (make-voice-props-set 4) 'Voice)

       and   changing voice three

voicethree = \relative c' {
    <<
        \new Voice
        {
         \voiceFive
         \override NoteColumn.force-hshift = #0.0
         s4 g4^~ g2 | s4 g4^~ g2 |
         s4 g4^~ g2 | s4 g4^~ g2 | s4 g4^~ g2 |
        }
        \\
        \new Voice
        {
         \voiceSix
         \stemDown
         g4\rest g4
         \once \override NoteColumn.force-hshift = #1.0
         fis2 |
         g4\rest g4
         \once \override NoteColumn.force-hshift = #1.0
         fis2 |
         g4\rest g4
         \once \override NoteColumn.force-hshift = #1.0
         fis2 |
         g4\rest g4
         \once \override NoteColumn.force-hshift = #1.0
         fis2 |
         g4\rest g4
         \once \override NoteColumn.force-hshift = #1.0
         fis2 |
        }
    >>
}


         -steve

>
>             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??
>
>      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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