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Can someone turn me on to harmonically interesting music theory concepts or harmonically interesting music?(r/musictheory)
Go and buy yourself a copy of Twentieth-Century Harmony by Vincent Persichetti! It sounds like just the thing you need, and it’s legit the most inspiring theory book I’ve ever had!
And some musical recommendations: Jack Conte has some really harmonically interesting songs. It’s never atonal or anything, but there are still some cool weird chord progressions I don’t think I’ve heard anywhere else. Also, go back and listen to some Carlo Gesualdo! Seriously, there’s some really out-there stuff in his music, even to modern ears.