#1
Of EVERYTHING. I really don't understand "diminished" or "sevenths" or ANYTHING when it comes to chords.. I know major and minor, and that's it. Is there an easy way to explain the chord layout?

Nor do I see how pentatonic scales are related by their notes. such as the A minor scale, etc..
Yes, they sound nice when put together, but how are they defined to be put together?
#3
that's alot of reading to do, but i'll do anything to get this knowledge crammed into my head! thanks.