How are the names for music notes used in French?
I understand that C=do, D=ré, etc.
But there are two things that remain unclear:
The usage of do vs. ut and si vs. ti.
The usage of alternative vowels for semitones, e.g. di for C-sharp instead of do.
To what extent are the different versions used and what text would be expected of me if I am asked to sing a melody from a sheet to prove my note-reading skills?