Boards
Songs that turned you onto an artist early on but didn't end up on an album
There must be a better way of wording that, but that'll have to do for now.
Thought of this after seeing that Dinosaur Pile-Up thread and the way that a lot of people got into them through the demo of Love Is A Boat And We're Sinking, which didn't make it onto their album. Also Blood Red Moon by the xx, which was the first track on their Myspace when buzz started going round about them and ended up only as the B-side of Basic Space.