Unfolding tremolo repeats - Revision history

Lemzwerg at 08:49, 6 January 2026

2026-01-06T08:49:46Z

← Older revision		Revision as of 08:49, 6 January 2026
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	Currently, <code><var>note</var>:<var>duration</var></code>, which is a more or less a shortcut for <code>\repeat tremolo</code>, is not unfolded by <code>\unfoldRepeats</code> (this is tracked in ~~[https://gitlab.com/lilypond/lilypond/-/issues/6145 issue #~~6145]). The function given in this snippet provides a workaround.		Currently, <code><var>note</var>:<var>duration</var></code>, which is more or less a shortcut for <code>\repeat tremolo</code>, is not unfolded by <code>\unfoldRepeats</code> (this is tracked in {{Issue\|6145}}). The function given in this snippet provides a workaround.

	<lilypond version="2.24">		<lilypond version="2.24">
	fixTremolos =		fixTremolos =

Lemzwerg: Add more categories; some formatting to avoid overlong lines

2025-12-24T05:28:47Z

Add more categories; some formatting to avoid overlong lines

← Older revision		Revision as of 05:28, 24 December 2025
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	~~Under normal circumstances~~, <code><note>:<duration></code>, ~~the~~ shortcut of <code>\repeat tremolo</code> is not unfolded by <code>\unfoldRepeats</code>. ~~This~~ function ~~works around that:~~		Currently, <code><var>note</var>:<var>duration</var></code>, which is a more or less a shortcut for <code>\repeat tremolo</code>, is not unfolded by <code>\unfoldRepeats</code> (this is tracked in [https://gitlab.com/lilypond/lilypond/-/issues/6145 issue #6145]). The function given in this snippet provides a workaround.
	<lilypond version="2.24">		<lilypond version="2.24">
	fixTremolos =		fixTremolos =
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	(ly:music-property m 'articulations))))		(ly:music-property m 'articulations))))
	(if event		(if event
	(let* ((total-tremolo-duration (ly:music-property m 'duration))		(let* ((total-tremolo-duration (ly:music-property m
	(tremolo-type (ly:music-property event 'tremolo-type))		'duration))
	(one-tremolo-note-duration (ly:make-duration (ly:intlog2 tremolo-type)))		(tremolo-type (ly:music-property event
	(tremolo-note-count (/ tremolo-type (expt 2 (ly:duration-log total-tremolo-duration)))))		'tremolo-type))
			(one-tremolo-note-duration
			(ly:make-duration (ly:intlog2 tremolo-type)))
			(tremolo-note-count
			(/ tremolo-type (expt 2 (ly:duration-log
			total-tremolo-duration)))))
	(set! (ly:music-property m 'duration)		(set! (ly:music-property m 'duration)
	one-tremolo-note-duration)		one-tremolo-note-duration)
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	{		{
			\music
	\unfoldRepeats \music		\unfoldRepeats \music
	}		}
	</lilypond>		</lilypond>

	[[Category:Repeats]]		[[Category:Repeats]]
			[[Category:Workaround]]
			[[Category:Included in the official documentation]]
			[[Category:Snippet]]

Schrodinger-s-kitten: removed "tweaks and overrides" cat

2025-12-23T22:20:25Z

removed "tweaks and overrides" cat

← Older revision		Revision as of 22:20, 23 December 2025
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	</lilypond>		</lilypond>
	[[Category:Repeats]]		[[Category:Repeats]]
	~~[[Category:Tweaks and overrides]]~~

Schrodinger-s-kitten: added categories

2025-12-23T22:06:35Z

added categories

← Older revision		Revision as of 22:06, 23 December 2025
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	}		}
	</lilypond>		</lilypond>
			[[Category:Repeats]]
			[[Category:Tweaks and overrides]]

Schrodinger-s-kitten: Created page with "Under normal circumstances, `:`, the shortcut of `\repeat tremolo` is not unfolded by `\unfoldRepeats`. This function works around that: fixTremolos = #(define-music-function (music) (ly:music?) (music-map (lambda (m) (let ((event (any (lambda (a) (and (music-is-of-type? a 'tremolo-event) a)) (ly:music-pr..."

2025-12-23T22:04:28Z

Created page with "Under normal circumstances, <code><note>:<duration></code>, the shortcut of <code>\repeat tremolo</code> is not unfolded by <code>\unfoldRepeats</code>. This function works around that: <lilypond version="2.24"> fixTremolos = #(define-music-function (music) (ly:music?) (music-map (lambda (m) (let ((event (any (lambda (a) (and (music-is-of-type? a 'tremolo-event) a)) (ly:music-pr..."

New page

Under normal circumstances, <code><note>:<duration></code>, the shortcut of <code>\repeat tremolo</code> is not unfolded by <code>\unfoldRepeats</code>. This function works around that:
<lilypond version="2.24">
fixTremolos =
#(define-music-function (music) (ly:music?)
(music-map
(lambda (m)
(let ((event (any (lambda (a)
(and (music-is-of-type? a 'tremolo-event)
a))
(ly:music-property m 'articulations))))
(if event
(let* ((total-tremolo-duration (ly:music-property m 'duration))
(tremolo-type (ly:music-property event 'tremolo-type))
(one-tremolo-note-duration (ly:make-duration (ly:intlog2 tremolo-type)))
(tremolo-note-count (/ tremolo-type (expt 2 (ly:duration-log total-tremolo-duration)))))
(set! (ly:music-property m 'duration)
one-tremolo-note-duration)
(set! (ly:music-property m 'articulations)
(delete! event (ly:music-property m 'articulations)))
(make-music 'TremoloRepeatedMusic
'repeat-count tremolo-note-count
'element m))
m)))
music))

unfoldRepeats = \unfoldRepeats #'() \fixTremolos \etc

music = { \repeat tremolo 8 c'16 c'2:16 }

{
\unfoldRepeats \music
}
</lilypond>