Re: problem with horizontal shift of note

[James E. Bailey]

On 08.03.2009, at 06:24, Tom Cloyd wrote:

> After 3 months away from Lilypond, I'm back, thankfully. All  
> updated and sailing...right into a wall. I could really use a hint  
> about this current problem.
>
> I cannot get a horizontal shift of a note, resulting in an ugly  
> collision. I think the problem is the "too many clashing note  
> columns" warnings I keep getting. I dimly recall someone telling me  
> what to do with that, but it's long gone from my memory, and in any  
> case hasn't been a problem (that I'm aware of). My score is, and  
> has been, working well. This is an old problem I'm trying to fix  
> tonight.
>
> At the risk of overload, I'll include the full program and CLI  
> output, the latter first:

I haven't begun to compile your score, but I see something (that I've  
corrected a lot of in the past weeks).
You have, essentially:
\version "2.12.2"

vOne = \relative c'' \new Voice {
        \voiceOne
        c d a c
        d e d c
}

vTwo = \relative c'' \new Voice {
        \voiceTwo
        a g f a
%% The following two lines are equivalent
        <<{b c a a}\\{a g g f}>>
%	<<\new Voice = voiceOne {\voiceOne b c a a } \new Voice = voiceTwo  
{\voiceTwo a g g f } >> \oneVoice
}

\score {\new Staff <<\vOne \vTwo>>}

You'll notice here that in vTwo, there is a section that puts music  
in voiceOne, which already has music, that'll cause collisions. You  
may want to change to voiceFour, and then do your manual note  
shifting using:

vTwoFour = \relative c'' \new Voice {
  \voiceTwo
  a g f a
  <<{b c a a}\new Voice = vFour { \voiceFour \shiftOn a \shiftOff g  
\shiftOn g \shiftOff f}>>\oneVoice
}

\score { \new Staff <<\vOne \vTwo>>