[drenei]

One vertical to begin with isn't a bad strategy. I think the one they've chosen is a good vertical to start with — the genre has a strong online community looking for new things. If it works with indie music, Mixest can broaden out.

Of course this might not be what they're intending to do at all.

[hugh3]

If I understand correctly, they're playing unsigned garage bands who want extra exposure and not paying any royalties. That will limit their ability to expand outside genres where such bands are common.

I wonder what kind of quality control they have. Will they accept my five-minute a capella nose-singing version of Somewhere Over The Rainbow?

[drenei]

In the 2 minutes I've spent on there I've seen a number of artists I don't know (which could be unsigned garage bands) and number that I do including Of Montreal and Animal Collective — both well respected and successful groups. I'm not sure what quality control they have, but it doesn't seem like all they're looking for is unsigned groups.