Re: Notes in voiceone corrupt voicethree after voice splitting?

[steve]

     Ok,

          I reduced the problem to one bar, and the black harmonics..
         Everything works except the notes are changed in voicethree and
voicesix to black harmonics.  This is the simplest reduction I can produce...


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


\version "2.18.2"

voiceFive = #(context-spec-music (make-voice-props-set 4) 'Voice)
voiceSix = #(context-spec-music (make-voice-props-set 5) 'Voice)

H = \once \override Staff.NoteHead.style = #'harmonic-black

voiceone = \relative c'' {
    \clef "G_8"
    \time 4/4
    \key g \major
    b4 b \H b b |
}

voicetwo = \relative c {
    \set harmonicDots = ##t
    e'8\rest d2..\harmonic |
}

voicethree = \relative c' {
         \override NoteColumn.force-hshift = #0.0
         s4 g4^~ g2 |
}

voicefour = \relative c {
    c1 |
}

voicefive = \relative c {
}

voicesix = \relative c' {
          g4\rest g4
         \once \override NoteColumn.force-hshift = #1.0
         fis2 |
}

 guitar = << \voiceone \\ \voicetwo \\ \voicethree \\ \voicefour \\
\voicefive \\ \voicesix >>

#(set-global-staff-size 19)

\score { \new Staff \guitar }


>>
>>   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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