Le dim. 2 juill. 2023, à 15 h 28, Valentin Petzel <valen...@petzel.at> a écrit :
> you should not use for-each in such a case. for-each is essentially a version > of map that does not return anything. > …the @ token to tell the parser to insert not the scheme > object in question, but all the elements of it: (studiously taking notes in this scheme 101 course) > The other way would be to construct the SimultaneousMusic << ... >> directly > in scheme: > $(make-music 'SimultaneousMusic 'elements parts) Thanks for the explanation Valentin. I really appreciate it. Jean Abou Samra <j...@abou-samra.fr> writes: > You can't — for-each is not the right tool for this. What you actually want > is called list splicing: #@ Thanks a lot Jean. This is exactly what I needed. David Kastrup <d...@gnu.org> a écrit : > That has an awkward look. I'd rather use Yes, sorry for that, I tried to MWEise my very awkward and barely functioning part system. > #@(ly:music-property parts 'elements) ^ Thanks, I'll keep this one in my tool box. -- Pierre-Luc Gauthier
