Peter raised a very good issue (or pair of issues). On Tue, 26 May 2026, Peter Payzant wrote:
> Sometimes in modern versions of early music, the editor uses the symbology > shown in the attached image to indicate a change in metre. I've looked > through quite a lot of the LilyPond documentation but haven't been able to > find any info about how to create this in a LilyPond file. > > It seems that there are two issues: how to create the "breve = dotted breve" > string (?), and how to position the result above the staff, centred on > the bar line. > The only snippet on the Wiki about metric modulations was Metric modulation with tuplet - LilyPond wiki <https://wiki.lilypond.community/wiki/Metric_modulation_with_tuplet>. Pursuant to my previous message <https://lists.gnu.org/archive/html/lilypond-user/2026-05/msg00212.html>, I have added a new snippet: Metric modulation (proportional tempi) <https://wiki.lilypond.community/wiki/Metric_modulation_(proportional_tempi)> . Peter wrote about (and I have used for the Wiki) early music, but the approach here should be useful for all metric modulations, not just those in Renaissance music. My thanks to all who contributed to the thread a couple of weeks ago! >
