Deep Purple in Rock [LP]

Deep Purple: Ian Gillan (vocals); Ritchie Blackmore (guitar); Jon Lord (keyboards); Roger Glover (bass); Ian Paice (drums).
Engineers: Martin Birch, Andy Knight, Phillip McDonald.
With IN ROCK, Deep Purple added vocalist Ian Gillan into the line-up, a decision that irrevocably changed their fortunes. IN ROCK is one of the genre's definitive albums, combining hard-edged riffs with virtuoso technique, topped by Gillan's full-throated roar. Few singers could survive the instrumental power beneath him, but this he does with room to spare, reacting to and emphasizing his colleagues' musical prowess. Chock-full of material destined to become Deep Purple anthems, later releases were evaluated against this trail-blazing, heavy rock collection.