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