On Sat, Apr 26, 2014 at 11:54 AM, Knute Snortum <ksnor...@gmail.com> wrote:
> Short version: I'd like to be able to pull in (import) several external ly
> files into a multi-movement piece.
>
> Long version:
>
> I'm transcribing for Mutopia and we have several pieces where people like to
> download one movement from a piece. For instance, I'm working on
> Mussorgsky's Pictures at an Exhibition. Many people just want the Promenade
> but I don't want make people download 10-14 files to get the whole piece.
> Yes, we could zip them, but they would still have to print a dozen files and
> there's no indication of order.
>
> What I'm wondering is if there is some way to create a LilyPond file
> containing a book with several scores, where the source of the movements is
> an external file. "includes" won't do. Something like this:
>
> \book {
> \score {
> import "./ly_files/promenade-1/promenade-1.ly"
> }
> \score {
> import "./ly_files/gnomus/gnomus.ly"
> }
> ...
> }
>
> Possible? On a wish list? Some other way to do it?
>
> If there's no good way to do it, I will probably write a Perl preprocessor
> to do it.
Why won't includes work? This is actually how I prefer to work (rather
than variables storing music). Here's an example:
=====================================
\version "2.18.0"
\include "defs.ily"
instrument = "Horn in F"
\include "header.ily"
\score
{
\new Staff
<<
{ \include "mvt1/horn.ily" }
{ \include "mvt1/outline.ily" }
>>
}
\score
{
\new Staff
<<
{ \include "mvt2/horn.ily" }
{ \include "mvt2/outline.ily" }
>>
}
\score
{
\new Staff
<<
{ \include "mvt3/horn.ily" }
{ \include "mvt3/outline.ily" }
>>
}
=====================================
I can use this file for the individual part, another for the piano
part, and anther which compiles a multiple pieces together. (assuming
a similar file structure: mvt1/horn.ily, mvt/outline.ily,
mvt1/piano_right.ily, etc.)
When typing out the score block becomes too repetitive I do something like this:
=====================================
\version "2.18.0"
... includes ...
makeGallayScore =
#(define-void-function (parser location num) (string?)
(let ((score
#{
\score
{
\new Staff { \include #(string-append num ".ily") }
}
#}))
(add-score parser score)))
makeGallay =
#(define-void-function (parser location low high) (number? number?)
(do ((i low (+ i 1)))
((> i high))
(let ((n (format #f "~2,'0d" i)))
#{ \makeGallayScore $n #})))
\makeGallay 1 40
=====================================
This was for a book of etudes. Each etude is the raw music in files
named 01.ily through 40.ily.
-----Jay
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