Hello David, > gamme.1 is not a variable name. It takes gamme to be an alist, and the > entry under key 1 is what is addressed here.
Since you showed the Scheme equivalent below, I guess the above is a part of LilyPond syntax, or something the LilyPond parser does. Is that documented elsewhere? I’d like to know a bit more details. Best regards, Jun > 2021/03/06 23:29、David Kastrup <d...@gnu.org>のメール: > > Silvain Dupertuis <silvain-dupert...@bluewin.ch> writes: > >> I still checked this use of variable with numbers. >> *Wonderful to see that it works.* >> >> One important note, though: >> If you use a numbered variable, _you cannot use the same variable >> without an additional number_. > > gamme.1 is not a variable name. It takes gamme to be an alist, and the > entry under key 1 is what is addressed here. > > You can equivalently write gamme . #(- 3 2) for example. > > In contrast, "gamme1" (referenced as \"gamme1") _is_ a single variable > name. > > As to converting numbers to roman numerals: what is wrong with > > #(format #f "~@r" 547) > > ? > > -- > David Kastrup >
