+ 'Score)
+ (make-music 'TimeSignatureEvent music))))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Some MIDI callbacks -- is this a good place for them?
+
+(define-public (breathe::midi-length len context)
+ ;;Shorten by half, or by up to a second, but always by a power of 2
+ (let* ((desired (min (ly:moment-main (seconds->moment 1 context))
+ (* (ly:moment-main len) 1/2)))
+ (scale (inexact->exact (ceiling (/ (log desired) (log 1/2)))))
+ (breath (ly:make-moment (expt 1/2 scale))))
+ (ly:moment-sub (ly:make-moment (ly:moment-main len)) breath)))