Hello, I'm trying to use some of the functions in translation-functions.scm to create my own note name markup. However, if I use note-name->lily-string or octave->lily-string, I get an "unbound variable" error for that function. I even tried to copy the whole note-name-markup code from the source to my code and rename it to note-name-custom-markup. But if I use this in \set noteNameFunction, I get that same error. Sorry if this is a dumb question, but I'm still trying to familiarize myself with most concepts of scheme...
Kind regards!
