The large scale projects presented on this web-site, including Sounds of My Life, Songwriting Parody, Produce With Watson and NYC Genres, each represent a half-year high school level Music Appreciation course which can be followed sequentially.
Alternatively, each project includes a detailed table of contents so you can choose resources Ă la carte.
Don't forget to have a look at the lovingly curated resource list, including online classes on everything from songwriting to music business, which you may audit for free on Coursera.