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Re: My first define-music-function, I'm trying, need help
From: |
Rick Hansen (aka RickH) |
Subject: |
Re: My first define-music-function, I'm trying, need help |
Date: |
Fri, 22 Dec 2006 09:11:04 -0800 (PST) |
seb-g wrote:
>
> On Thu, Dec 21, 2006 at 02:48:24PM -0800, address@hidden
> wrote:
>>
>> The simple substitution example below should be pretty easy, but I'm "in
>> a
>> pickle", can someone show me how to replace the note name in the
>> transpose
>> statement with the note specified on the function call (parameter called
>> "root")?
>>
>> But it gets the following error:
>>
>> <string>:2:13: error: syntax error, unexpected MUSIC_IDENTIFIER,
>> expecting
>> NOTENAME_PITCH or TONICNAME_PITCH
>> \transpose c
>> \lilyvartmpb { \relative { <c e g> } }
>>
>
>
> Well I am not a lily schemer expert neither.
>
> I found a function to transpose in the lily sources:
>
> (set! root (ly:pitch-transpose root (ly:make-pitch 1 0 0)))
>
> this makes note "root" one octave higher.
>
> What you have to do:
> - get wanted pitch:
> (ly:music-property (first
> (ly:music-property root 'elements)) 'pitch)
> - apply "ly:pitch-transpose" for each note of the chord:
>
> (map do-transpose (ly:music-property chords 'elements))
>
> you have to write "do-transpose" an a function that do the job :-)
>
> For example, have a look at the "removeTies" function here:
> http://lilypond.chezwam.org/darcs/lilypond/utils/chezwam-functions.ly
>
> This was my first scheme function I hope this will help you.
>
>
> I will have a look on your's after my vacations.
>
>
> Merry Xmas & happy new year.
>
>
> --
> Sebastien Gross
>
>
> _______________________________________________
> lilypond-user mailing list
> address@hidden
> http://lists.gnu.org/mailman/listinfo/lilypond-user
>
>
Thanks Sebastien,
I was afraid of this kind of answer, if define-music-function cant do
something as simple as replace one note on a \transpose without writing a
whole bunch of code... I'm not going to bother with it myself. Too much
complexity, I'd rather look for something that will let me stay on a
user-level, I just dont have time for programming.
Lilypond desperately needs some king of built-in text pre-process (that
installs with lilypond) to take care of these things, instead of everybody
having to constantly re-write the core lilypond code to do such simple
things.
Rick
--
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Sent from the Gnu - Lilypond - User mailing list archive at Nabble.com.
- My first define-music-function, I'm trying, need help, Rick Hansen (aka RickH), 2006/12/21
- Re: My first define-music-function, I'm trying, need help, Rick Hansen (aka RickH), 2006/12/22
- Re: My first define-music-function, I'm trying, need help, Sébastien Gross, 2006/12/22
- Re: My first define-music-function, I'm trying, need help,
Rick Hansen (aka RickH) <=
- Re: My first define-music-function, I'm trying, need help, Sébastien Gross, 2006/12/22
- Re: My first define-music-function, I'm trying, need help, Geoff Horton, 2006/12/22
- Re: My first define-music-function, I'm trying, need help, Paul Scott, 2006/12/23