Re: parallel versus series scoring

[Han-Wen Nienhuys]

Nicolas Sceaux wrote:
> Han-Wen Nienhuys <address@hidden> writes:
>
>
> > Nicolas Sceaux wrote:
> >
> > > ------------------------------------------------------
> > > parallelMusic = #(def-music-function (parser location voice-number
> > > music) (number? ly:music?)
> >
> > it's hack, but it's a cool one. With a little polishing, we should be
> > able to put it in the standard distribution. Wouldn't it be better to
> > store the voices in different variables? It would be nice to check
> > whether the lengths of all bars are equal.
>
>
> If it were to be actually used, it should be a bit more generic. Maybe:
>
>   \parallelMusic voice-identifiers output-pattern parallel-music
>
> For instance (not workable example, see below):
>
> \parallelMusic #'(voiceA voiceB voiceC)
>                << \new Staff \voiceA
>                   \new Staff \voiceB
>                   \new Staff \voiceC >>
>   { c'1 | e' | g' |
>     d' | fis' | a' | }
>
> <==>
>
> << \new Staff { c'1 | d' | }
>    \new Staff { e' | fis' | }
>    \new Staff { g' | a' | } >>

As you point out, this presents syntactical difficulties. Why not do

 \parMusic #'(A B C)  { c | e | g  | d | f | a}

which expands to  { }, and defines the following vars in the parser

  A = { c d }
  B = { e f }
  C = { g a }

then, the user can decide for himself how to structure A B and C.


--
 Han-Wen Nienhuys - address@hidden - http://www.xs4all.nl/~hanwen