I know this to do with drums, but it applies just as well to other instruments.
Benny Greb is one of my favourite drummers of all time. He's a bit of an intellectual, but he's able to clearly articulate the "why" of music in a way that really resonates with me. Hope you enjoy.
[embed]https://www.youtube.com/watch?v=Pa3rRdDAWpc[/embed]
