Fundamentally, the data model of Lilypond is horizontal, even when you
delve into the guts of how the program works (iterators, streams,
engravers). My advice is to embrace that and adapt your workflow and
thinking to take advantage of Lilypond's strengths, rather than fighting
against it.
In my experience composing with Lilypond, dividing pieces into sections
like this leads to more pain later on if I decide I want something like an
overlapping hairpin between the sections. Yeah, it's a little annoying to
count bars in each part if I decide to add a measure or change a time
signature, but it's not that big a deal if you use barchecks and one
measure per line of code.
Having a single variable for the music for each part to be extracted makes
a lot of sense, since it keeps the composer in the mindset of what each
player will be seeing.
My two cents.
On Thu, Jan 10, 2019 at 4:03 PM Valentin Villenave <valen...@villenave.net>
wrote:
> On 1/10/19, Павел Буданов <budanovpa...@yandex.ru> wrote:
> > And I will add this music to score block:
> > \refren \bar "||" \episodeA \refren \episodeB
> > Is this case possible? If so, how to implement it correctly, where is the
> > documentation written about it?
>
> Greetings Pavel,
> at its heart, LilyPond very much encourages «horizontal thinking»:
> it’s easier to enter one melodic voice, then another, then another.
>
> However, there are a few ways to enter music section by section like
> what you’re looking for. The first one is to use \context Staff (which
> can re-use an existing Staff rather than create a \new one every
> time):
>
> %%%%%%%%%%%%%%%
>
> FirstSection = <<
> \context Staff = "voice" \relative c' {
> c2 d e1
> }
> \context PianoStaff = "piano" <<
> \context Staff = "right" \relative c' {
> <g c g'>2 <g d' g> <c e g>1
> }
> \context Staff = "left" \relative c {
> \clef bass
> e2 b c1
> }
> >>
> >>
>
> SecondSection = <<
> \context Staff = "voice" \relative c' {
> a'2 f4 a g1
> }
> \context PianoStaff = "piano" <<
> \context Staff = "right" \relative c' {
> <a c f>2 <c f a> <e g c> q
> }
> \context Staff = "left" \relative c {
> \clef bass
> f,4 g a b c2 c
> }
> >>
> >>
>
> \score {
> {
> \FirstSection
> \bar "||"
> \SecondSection
> }
> }
>
> %%%%%%%%%%%%%%%%%
>
> The second trick you may be interested in learning, is \parallelMusic
> (which allows you to enter polyphonic music with every voice at once).
> Have a look at this chapter:
>
> http://lilypond.org/doc/stable/Documentation/notation/multiple-voices#writing-music-in-parallel
>
> Good luck!
>
> V.
>
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