Am 25.04.2015 um 00:38 schrieb Thomas Morley:
Hi all,
I'm a little late to the party...
One very annoying thing about \relative is when you want to use
music-functions catching some music doing something with it.
Here the less complex function I could think of, returning different
results for absolute and relative.
(It's only a show-case, the functionality could be achieved easily
with other predefined commands, but I hope you'll get the point.)
repeat-note =
#(define-music-function (parser location music)(ly:music?)
(make-sequential-music (list music (ly:music-deep-copy music))))
\absolute { c'1 \repeat-note c'' }
\relative c' { c \repeat-note c'1 }
Well, either we require doing
\version "2.19.17"
repeat-abs-note =
#(define-music-function (parser location music)(ly:music?)
(let ((music #{ \absolute $music #}))
(make-sequential-music (list music (ly:music-deep-copy music)))))
\absolute { c'1 \repeat-abs-note c'' }
\relative c' { c \repeat-abs-note c''1 }
or we consider this a bug in (or enhancement request to)
(ly:music-deep-copy), towards which I’m inclined.
Yours, Simon
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