Robots have been inspiring musicians for years (see: “Sheep” by Pink Floyd), but that doesn’t mean there has been some kind of cultural consensus on where they fall on the good vs. evil axis. After the jump, we’ve rounded up a mixtape of the 20 definitive robot tunes, and divided it up so you’ll be able to pick sides. Side A: Robots are good. Side B: Robots are evil. Enjoy, and drop any glaring omissions in the comments!