Re: Fold out repeats with alternatives

[Jay Anderson]

On Sat, Jul 21, 2012 at 7:17 AM, Johan Vromans <address@hidden> wrote:
> However, I'd like to avoid the use of variables since that visually
> interrupts the flow of notes.

I don't think there's any way to avoid interrupting the flow. However
you can avoid variables and keep the music inline with what David
wrote, but it's not the cleanest since you need another inner block:
==========================
\version "2.15.41"

\score
{
  \new Staff \relative c'
  {
    c1 |
    \pushToTag #'here \relative c' { b1 }
    {
      d1
      \tag #'here {}
      e1
      \tag #'here {}
      f1
    }
    g1
  }
}
==========================

One thing I've thought about is temporary storage of inline music:

==========================
#(define music-storage '())

storeMusic =
#(define-music-function (parser location sym mus) (symbol? ly:music?)
  (set! music-storage
    (assq-set! music-storage sym mus))
  mus)

fetchMusic =
#(define-music-function (parser location sym) (symbol?)
  (assq-ref music-storage sym))

\score
{
  \new Staff \relative c'
  {
    c1 |
    d |
    \storeMusic #'A \relative c' { b }
    e
    \fetchMusic #'A
    f
    g
  }
}
==========================

Some care would be needed since music-store is never cleaned out
(memory leak), but I think an approach like this could be useful. Also
the inner relative would be required though I'm sure there are ways to
fix that.

-----Jay