ly:format-output
ly:get-all-function-documentation
ly:get-all-translators
- ly:get-default-font
ly:get-glyph
ly:get-option
ly:grob-alist-chain
+ ly:grob-default-font
ly:grob-extent
ly:grob-original
ly:grob-layout
ly:music-mutable-properties
ly:music-name
ly:music-property
- ly:music-scorify
+ ly:make-score
ly:music-set-property!
ly:music-transpose
ly:music?