"Christopher R. Maden" <cr...@maden.org> writes: > I am trying to tackle the swing music problem that someone posted about > earlier; it arises in traditional Irish music as well. > > I’m blocked on detecting eighth-notes, though (or quavers for you Brits). > > It seems like this should work (event is an EventChord): > > (eq? > (ly:music-property > (car (ly:music-property > event > 'elements)) > 'duration) > (ly:make-duration 3 0 1 1)) > > However, this seems to return #f all the time, regardless of what event > actually has. If I use (eq? (ly:duration-log ...) 3), it works, so I > know I am getting a duration. Do I have to actually compare > duration-log, duration-dot, and duration-factor? That seems a bit annoying. > > What am I missing?
The guile manual? eq? compares for identity, not equality of objects. Composite objects constructed independently are not identical. -- David Kastrup _______________________________________________ lilypond-user mailing list lilypond-user@gnu.org https://lists.gnu.org/mailman/listinfo/lilypond-user
