2014-03-20 13:41 GMT+01:00 David Kastrup <[email protected]>:
> Benjamin Fluehr <[email protected]> writes:
>
>>> The examples in the manual don't really require Scheme knowledge.
>>
>> Mostly true, but my lack of Scheme knowledge prevents me from fully
>> understanding the error messages when things go wrong. Here is my attempt:
>>
>> \version "2.18.0"
>>
>> crossGlissando =
>> #(define-music-function
>> (parser location noteA noteB)
>> (ly:music? ly:music?)
>> #{
>> #noteA \glissando
>> \change Staff = "up"
>> #noteB
>> \change Staff = "down"
>> #})
>>
>> \score {
>> \new StaffGroup <<
>> \new Staff = up
>> \new Staff = down {
>> \new Voice {
>> \crossGlissando c' d'
>> }
>> }
>> >>
>> }
>>
>> And the associated errors:
>> error: syntax error, unexpected EVENT_IDENTIFIER
>> #noteA
>> \glissando
>
> That's actually a different problem: you cannot attach articulations to
> music events in variables. You can probably futz around this a bit by
> using things like
>
> < $NoteA >\glissando
>
> but of course that only works when NoteA is just a single note. It is
> true that one can work around some of that by reverting to actual Scheme
> programming.
>
> --
> David Kastrup
Any problem with:
<>\glissando
#noteA
?
Seems to work, with chords, too.
Cheers,
Harm
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