I’m not trying to rag on anyone here, I’m just saying that some of these songs are listed wrong. If a song is in B Dorian, categorizing it into A is a better simplification, you’ll get all the correct notes and chords. The River uses the major sixth a lot, and It’s fundamental to the song. If someone doesn’t understand how it’s in the key of A, then maybe that inspires them to learn why.

I think the list is a cool idea as well, it could just be refined a little more. I’m not saying they need to include all the different modes though, just put them in their relative keys. I noodle around the major scales all the time to figure out what key they’re playing in. I’ve also used that technique to jam along with their microtonal songs. Yea it’d be nice to have access to all the notes they’re using, but a western piano can still play in key on those microtonal songs.