mergefm wants you to get in on the music-creation process:

Here’s a cool idea: take the sort of behind-the-scenes content you’d usually get on special edition concert DVDs, and get it live on the web. Hrm.

That’s sort of what mergefm is like. You can browse participating artists and hear songs as they work on them, starting with rough demos and moving through revisions until you get to the final copy — all in real time, as they post them.

If you’re a fan of an artist who’s on the site, you’ll love this. It’s very fun to compare different versions and hear a song evolve over time. Some artists even have multi-track versions of their songs, which is very cool.

Bonus: there’s a clear profit model here. To access all of the content on the site, you’ll need a subscription, which is pretty reasonably priced. mergefm shares the money 50/50 with artists, which isn’t too bad of a deal. If you’re just poking around casually, each artist has one free item.

Of course, it’s all small indie artists here now, but I think this could have some legs. If mergefm can land a big name or two, this could take off. Follow them at @mergefm or check out their blog.