Harmony Explained: Progress Towards a Scientific Theory of Music
"Music theory" tends to be incredibly narrowminded and Eurocentric. Harmonic theory? Outside of Europe and European-derived forms, harmony is very rare. There are melodic traditions that do not use harmony, yet are just as traditional and sophisticated (Arabic, Hindustani, and Carnatic music all come to mind), and there are purely rhythmic traditions (various African, Arabic, central Asian, etc). And in the modern world, there is ambient, music built out of tone rather than rhythm/harmony/melody.Having studied and played several different traditions to varying degrees, one thing I've learned is that music is equally sophisticated everywhere. There's this idea that classical and jazz are more sophisticated than "folk" forms. It's BS.