Related to Are "Where can I find this?" questions on-topic?, but not a duplicate.
It's been decided that questions asking where to buy a song or album are off-topic, but a related questions would be "Has this ever been released?" An example would be this question:
It basically asks if two extra songs that weren't released on the original soundtrack are available anywhere.
Personally, I'm on the fence on this one. The example is actually a pretty good question, and it's understandable why the extra tracks may be available. On the other hand, it opens up the door to A LOT of questions like
Is there a live recording of Pantera playing Planet Caravan?