Give King Crimson a chance, it’s some seriously experimental stuff from the 70’s.
At this very moment of writing, I haven’t done any research on the band – but on their music alone, I’d be under the impression that the music wasn’t the only thing these chaps were experimenting with.
The second video is shorter and quite awaaaays wackier – definitely give that one a listen.
It was probably the best time for experimental music; once you’ve got your drug addled audience, the rest seems comprehensive.
Update: Apparently they weren’t into the whole drug scene. Who would have thought?