Hi, Why do you often find constructs similar to this one in LilyPond's source?
midi.scm line 26: (define-session-public absolute-volume-alist '()) (set! absolute-volume-alist (append absolute-volume-alist etc.)) line 72: (define instrument-names-alist '()) (set! instrument-names-alist ...Is there any difference with (define-session-public absolute-volume-alist '(...)) ? I suspect there is one since this is frequent but I can't figure out what the purpose is here.
Best, Jean Abou Samra
