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Retrograde
A music expression can be reversed to produce its retrograde:
music = \relative { c'8. ees16( fis8. a16 b8.) gis16 f8. d16 } \new Staff { \music \retrograde \music }
![[image of music]](../f2/lily-9638d16f.png)
Known issues and warnings
\retrograde is a rather simple tool. Since many events are
‘mirrored’ rather than exchanged, tweaks and directional
modifiers for opening spanners need to be added at the matching
closing spanners: ^( needs to be ended by ^), every
\< or \cresc needs to be ended by \! or
\endcr, every \> or \decr needs to be ended
by \enddecr. Property-changing commands/overrides with a
lasting effect will likely cause surprises.
See also
Notation Reference: Inversion, Modal transformations, Transpose.