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Re: My first define-music-function, I'm trying, need help
From: |
Sébastien Gross |
Subject: |
Re: My first define-music-function, I'm trying, need help |
Date: |
Fri, 22 Dec 2006 17:20:55 +0100 |
User-agent: |
Mutt/1.5.13 (2006-08-11) |
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
- 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 <=
- 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, Geoff Horton, 2006/12/22
- Re: My first define-music-function, I'm trying, need help, Paul Scott, 2006/12/23