I often find myself collecting various versions of a particular artists songs--one from the early album, a live concert version, a remake, and so on. This was a lot easier in the heyday of Napster, but you can still do it if you try, thanks mainly to iTunes and Google.
What seems to be missing is a web site where you can easily find out how many version of Pink Floyd's "Wish You Were Here" exist and which one(s) are generally regarded as superior. Or maybe you're a fan of Sarah McLachlan's "Angel" and didn't know that the versions on "Surfacing" and "Mirrorball" are different. And that there's a live duet version on the 2nd Lilith Fair album. Or the various version's of Peter Gabriel's "Don't Give Up." I have one with Kate Bush, one with Sinead O'Connor (not sure were I found it--I thought it was Us but it's not), and one with Paula Cole.
I could go on. For quite a while, in fact.
What I'm thinking of is something IMDB-like for music. Considering how I occasionally get sidetracked on IMDB for a while, that'd be ideal.
Does such a thing exist?
I admit to not having looked very hard, but I've yet to run across a site that was even close to doing for music what IMDB does for movies and television.
So far the closest I've found is Artist Direct but there's something I don't like about the site and I can't quite put my finger on it..