The bass player used to be the statue the back of the stage, hardly moving and just supplying the constant thrum to compliment the drum beats. Meanwhile upfront and centre was the exuberant guitarist, strutting his stuff, writhing around the stage in bouts of ecstasy whilst alternatively teasing and thrashing his instrument. However these days the bass players have sharpened their elbows and thrusting themselves to the front, no more hiding near the drum kit, the inner animal has been released. Some of the bass men that I’ve photographed over the last couple of years have been as entertaining as…