@ondiz Most videos by Jaime Altozano are very good and very informative.
However, the videos scratch the surface (on purpose): they are meant for people to have an intuitive understanding of music and get excited about it, not to really learn music theory.
Did you see my talk? It was meant to be at the same level, though. I seem to recall that the stuff at http://mugglinworks.com/chordmaps/ was fairly good, maybe that's the level you're looking for.
What kinds of things do you seek to understand?
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