Music Law - How to Run Your Band's Business

How to avoid getting screwed:

A BPA can avoid disputes in the first place by establishing the rules of the band at the outset.  A thorough, written agreement is often enough to resolve a conflict before it gets ugly and ends up in court.  Even if a dispute does arise, a BPA can help the band avoid a lawsuit by establishing a method for resolving disputes such as arbitration or mediation.

via Music Law: How to Run Your Band's Business By Richard Stim