Communication is great. But my concern with things like buddypress, forums, or any kind of public chat that is always available is that when most artists are just getting rolling they don't yet have a large enough community to keep the feeds looking lively, which can be uninspiring. Instead you might simply have a comment form below content, or even just have the occasional live chat or internet concert, so that you are communicating with them from time to time, but you don't run the risk of creating a public ghost town.

Then, once you have a few hundred members and you know there is a community there, you could introduce something like a forum or whatever platform appealed to you.

That's my two cents anyway. But there is no real right or wrong answer here. It's all about just creating an environment that best suits your personality and the actual relationship you have with your fans.

Cool, yeah, I'm not very aware of all that buddypress can do. So if there is a way to use it similarly to comments and then expand that might be cool. Cheers.