if you join a band on the understanding that you are in another band fair enough, but I've seen situations where 2 members of a band go off and join another band, leaving the existing members feeling resentful, when you're all only in one band it's like being in a gang, us against the world sort of thing, sort of destroys that if members go off and join other bands, but all bands are different and if a band is hardly gigging I suppose it works, but I think what's the point of being in a band that's hardly doing anything? ymmv