I've been using this account for awhile to test the communities feature. On my main account I have some autovotes that come in and sometimes I want to make short posts, Palnet updates, maybe some art I have nothing to say about??? or other silly things so I will be using this one for those purposes. I would also prefer to keep my main blog art and music focussed so at the moment this seems like a good compromise!
Once the communities feature is live I may abandon it, depends on how it will work though, we'll see :)
I would recommend you all try communities and have a muck about, I think this can really be a gamechanger for how we interact on steem!