On Sun, 2014-10-05 at 11:27 +0200, Urs Liska wrote:
>
> Am 5. Oktober 2014 11:18:42 MESZ, schrieb Marc Hohl <m...@hohlart.de>:
> >Am 05.10.2014 um 10:03 schrieb Jay Vara:
> >> I have a song.ly file which prints a song. Is it possible for someone
> >to
> >> print the song with a transposition, say c to d, without editing the
> >.ly
> >> file? Something like:
> >>
> >> \transpose c d {\include song.ly}
> >
> >I had a similar problem some time ago.
> >
> >I included the following lines in song.ly
> >
> >#(define transposeTo
> > (if (defined? 'transposeTo)
> > transposeTo
> > #{ c #}))
> >
> >melody = { ... }
> >chords = {... }
> >
> >\score {
> > \transpose c $transposeTo
> > <<
> > ...chords ...
> > ...melody ...
> > >>
> >}
> >
> >Then you simply make a new file song-in-d.ly:
> >
> >#(define transposeTo #{ d #})
> >\include "song.ly"
> >
> >
>
> Cool solution, I'll take this into my repertoire.
>
> You can then factor out the function into a library file. And you could pass
> the variable on the commandline
That's interesting - in Denemo I created a global transpose variable to
be applied not just to the score but also things like footnotes quoting
bits of music - being able to specify the value of this transposition
from the command line adds more flexibility - I guess you would need the
if-not-defined construct to handle this (otherwise you would *have* to
define the variable on the command line).
Richard
> instead of adding a new file.
>
> Urs
>
> >
> >HTH,
> >
> >Marc
> >
> >
> >
> >
> >
> >
> >
> >
> >>
> >>
> >>
> >>
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