I believe that the "CC-By-ND" license fully suits my needs: anyone can use the music in their project, but modifications to the music are not allowed.
However, I am uncertain if real-time changes to volume, pitch, or speed would be compatible with the license.
It is likely that I will need to draft a custom license inspired by "By-ND" but allowing these modifications, although I am not certain.
You can consider that I am using the CC-By license as long as you don't need to make permanent changes to the audios.