yeah if you don't need certification some are completly free, like Developing Your Musicianship for beginers from 4 part course that 2nd is intro to music production to writing songs all parts called modern musician also other Introduction to Ableton Live. some from berklee college of music. well certificacion must be paid but check the details at website.

 

Thanks for mentioning it, this is indeed a really great offer.
I did an improvisation course there, held by gary burton who reviewed all our homework and as you say, even so for free participants. Incredible value for the money