Rick Beato has taught me more about music and music theory than any other source (besides constant listening, of course). He has a masters degree in Jazz Guitar and taught guitar for many years before becoming a recording engineer/mixer/producer.
I first found his channel by watching a video from his series, "What Makes This Song Great?"
Here are a few, for example:
His vids on music theory and composition are a huge wormhole.
etc...
His son Dylan has perfect pitch, which fkn blows me away.
anyway, check out his videos, they are a wealth of information
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