Scotland's Holocaust emerged in 1977 with a gritty sound that echoed the sonic, working-class attack of fellow New Wave of British Heavy Metal luminaries like Judas Priest, Diamond Head, and Motorhead. Led by guitarist John Mortimer, who has remained the group's sole constant member throughout the decades, the band's early output proved to be a huge influence on the Bay Area thrash scene, with Metallica covering the band's 1983 single "The Small Hours" on their Garage Days Re-Revisited EP. Despite enduring myriad personnel changes and hiatuses, Holocaust has remained prolific,...