There was a book called "Zen Guitar" that I studied as a bible when I was first learning to play guitar. You can guess what the lessons were like, "Play it for the enjoyment and peace of mind." Proficiency followed after that.
I had a friend/neighbor who was going out there to study this. Not sure what ever became of him though... I studied "Computer Music" as they called it, in college. One course was about composition and another was about programming the sounds. I did great at the composition course, I did miserable in the programming one :/ Too much tedious, technical detail and not enough "art" for my taste!