5 Simple customised music apply.
9 music = \notes { c'4 d'4( e'4 f'4 }
11 #(define (reverse-music music)
12 (let* ((elements (ly-get-mus-property music 'elements))
13 (reversed (reverse elements))
14 (span-dir (ly-get-mus-property music 'span-direction)))
16 (ly-set-mus-property music 'elements reversed)
19 (ly-set-mus-property music 'span-direction (- span-dir)))
21 (map reverse-music reversed)
28 \apply #reverse-music \music
30 \paper { linewidth = -1. }