I first heard John Coltranes album Blue train and I was blown away by the level of skill he possessed while playing. One major thing that blew me away by the album is that its just him playing the Saxophone and you do not get tired of hearing him play.
But back to the documentary above about Mr Coltrane. I never really knew that he was such an avid studier of different types of music. It makes perfect sense for whomever to do such a thing for their chosen field. I for one realized I need to start exploring different types of design from other countries instead of just focusing on whats happening here in the U.S.