One thing I noticed missing is how frequently is too frequently to post. We started queuing up 8 posts a day at one point, one every three hours, and found that our Edgerank went down, and we got some unLikes. You might add some info about how much is too much to post.
This is also a bit different, since we're not a band, but we found that we got a higher response when posting content relevant to bands than we get when we post to consumers. It could be that we have a lot more musicians than regular music listeners, or it could be that our most engaged fans are the musicians. It might be worthwhile to give bands a "test plan" that will help them narrow down who, out of all of their fans, they should target the most.