Tutorial--composing Music
https://www.datacamp.com/community/tutorials/using-tensorflow-to-compose-music
Made with Code's Music Mixer
https://www.madewithcode.com/projects/music
The Music Mixer from Made with Code is possibly the simplest way to play with code and virtual musical instruments.
Made with Code's Mentor Video (Ebony Oshunrinde)
https://www.youtube.com/watch?v=IOdkfOhUtjs
DiscoverE Engineering
http://www.discovere.org/
Sound Proof Box activity.
GrooveCoders
https://groovecoders.com/
While this isn't free, it gives students and coding clubs the opportunity to create songs.
Earsketch
https://earsketch.gatech.edu/landing/#/
Use python or javascript to mix music in a DAW. Free.
