Found an interesting link. Someone ranked the influence of various works of 20th century art via content analysis: the more times a work was referenced in various art/art history textbooks, the higher the rank. The list is interesting, and there were a bunch of pieces I hadn't seen before, and several old favorites that I hadn't seen in a long time. A lot of the links are broken, but if something strikes your fancy, I had good luck with google to fill in the blanks.

Currently listening to: "Technovo" by Volapük. Weird, engaging, interesting instrumental music is fine by me. It's even better when the band name is a reference to an obscure constructed auxiliary language!