The 2013 Martin Popoff short ebook about the making of the Gamma album, Gamma 2.
One of the gosh-darned coolest classic metal albums of all time, Gamma's second (of four, and arguably... two!) is a cogent, potent evocation of Deep Purple meets Robin Trower, and this long making of "essay" celebrates the record in considerable detail. Interview footage comes from vocalist Davey Pattison, bassist Glenn Letsch, and the dearly departed leader of the band, guitarist Ronnie Montrose.