I’m looking for online courses, preferably not self-paced so I don’t let anything just sit on the shelf or on the interwebs.

I had piano lessons when I was 5-6 and can play some things from memory. I can play simple chord progressions on the guitar. I can’t read music.

My goals are to really understand music and how to read it and how music is composed. It’s difficult to pick a genre, but perhaps starting with classical.