But of course, for this example, this will work without any added file
av = #(define-music-function (parser location x) (ly:pitch?)
#{
$x 8 ~ $x 4
#})
... but it will fail with chords
[ ly:pitch? return false of course, for <ees g> ]
\new Staff \relative c' {
c4. \av <es g> f4 % error
}
Well ... stop of experimentations for me, for this evening.
--
Gilles
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