Recently, around 500,000 music files (out of estimated 50 million(!!)) were recovered from Myspace spanning 2008-20010. You can find all the info and the webplayer here. In short, it's not as great as I was hoping, can't find much on there and the searching function is pretty shitty.
I just as a test searched up Tunes for Bears to Dance to and came across this random track I've never heard before. It simultaneously sounds like them, but not at all. More Capsule or something. Not a very good song. It could totally be a mislabeled track, so comment below if you know anything about it.
And, if you haven't heard this unreleased track uploaded by theangryemonerd, check it out. Much more legit and a decent song.