my first impulse is pink floyd, i have listened to so much pink floyd i think the music has become a part of my own body, and not only are they the big 70's-80's rockband that most people know them as, but they started out as an amazing psych rock group, and syd barrett has always been one of my favorite musicians. And the beatles were way more pop, a lot of their stuff sounds the same, but then i thought of magical mystery tour, which was mind blowing, amazing music. so pretty much pink floyd, but the beatles have their place too.