2014-03-23 11:59 GMT+01:00 MING TSANG <
address@hidden>:
> Lilyponders,
> Help / explanation is appreciated.
> Question 1.
> I find a sample .ly in recent archive user list for testing and I have
> question I like to clarify.
> When entering chords with <...> construct,
> a: which note pitch enter first - ie <c' e''>2 or <e'' c'>2?
> b: what is the difference?
> c: the sample .ly has several functions -\extractNotes ; \ePU ; ePL etc.
> and I find several things I don't understand. please refer to .pdf file.
> Only sample output (2.)
>>What's the question?
Sorry, the question 1 question is "only output (2.)" has the correct desire output. all the others contain some undesired result. I am seeking if the "\extractNote" can also produce the same output as (2.) in the .pdf. ie \extractNote can extract properly for the <<{..}\\{..}>> construct note entry. Sample (1.) and (3.) notes were not extract properly. For sample
(4.) I think this has to do with which note enter first for the <..> construct. >
> Question 2.
> I search LSR and found tweak color notehead sample in <..> construct and use
> it. I am coding every chord with the tweak color.
> a: how can I code a 'function' so that all chords are tweak ie. don't need
> to enter tweak for every chords?
Do you think of sth like below?
\version "2.18.0"
clr =
#(define-music-function (parser location color
music)(color? ly:music?)
(music-map
(lambda (mus)
(if (music-is-of-type? mus 'event-chord)
(let ((evt-chrd-nts (event-chord-notes mus)))
(for-each
(lambda (n)
(if (> (length evt-chrd-nts) 1)
#{ \tweak #'color #color #n #}
n))
evt-chrd-nts)
mus)
mus))
music))
myMusic =
\relative c' {
<c e g>-!
<d e f>^"xy"
<e-1>
f---2^"foo"
}
\new Staff \clr #red \myMusic
The sample clr you provide does not output exactly what I am looking. I am looking for a "function" that will tweak the first enter pitch to have color only (red or blue) for all the <..> entries not all the pitch inside the <..> to have the same color.Cheers,
Harm