Volcanic fallings out within bands are an ever-recurring motif in the history of rock music. There’s an obvious reason for this: most musicians pick up an instrument in the first place not because they hear the call of Euterpe but because they’re sailing on the HMS Ain’t Gettin’ None.

They dream of fame, fortune and the cream of international crumpet, so they form a band with like-minded fellows — and then find that not all musos are created equal.