I saw a demo of this a few months ago, and it’s great. It’s like WordPress but with very band-focused features – you can manage not just blog posts, but mp3s, photos, videos, and associate content not just by date or category but by show/gig. You could either use it to self-host your site, or use a hosted service.
You can help fund the project here.
My interview with Josh (not about Dbasr) is here.