Philip Rhoades <p...@pricom.com.au> writes:
>>> \version "2.18.0"
>>> \score {
>>> {
>>> $(let ((random-state (seed->random-state (current-time))))
>>> (make-sequential-music
>>> (map (lambda (x)
>>> (let ((idx (random 12 random-state)))
>>
>>> (make-event-chord
>>> (list
>>
>> You can forego the above two lines (of course removing the respective
>> closing parens later on) nowadays.
>>
>>> (make-music 'NoteEvent
>>> 'duration (ly:make-duration 2 0 1/1)
>>> 'pitch (ly:make-pitch
>>> (quotient idx 7)
>>> (remainder idx 7)
>>> 0))))))
>>> (make-list 24))))
>>
>> Ok, make-list is a tad-bit more basic and efficient than the iota I
>> employed.
>
>
> I get a GUILE error on line 5
>
> $(let
I don't. Copy and paste error?
> $@(let
>
> but that didn't work either (obviously I don't know what I'm doing . .)
Obviously. $ splices a single expression (which is what
make-sequential-music produces) into LilyPond, $@ splices a list of
expressions.
--
David Kastrup
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