Yeah, that's a good point, you enter a track, you get more tracks like that track. If you enter all the tracks on an album, you don't get other albums back, you get tracks like those tracks, but it's better than nothing. I have to admit, the best I've found is "related artists", and you can get that from AMG, but not "albums" per se. I don't think I've seen that yet. Kickstarter?
Do you remember genius on iTunes? Does anyone still use that?