This musical biography tells the story of the making of Deep Purple's classic album "Machine Head. Exclusive interviews with Ritchie Blackmore, Ian Gillan, Roger Glover, John Lord and Ian Paice take us through a track by track making of the album. The performers demonstrate riffs & licks from the songs and explain the genesis of the songwriting. Also included are featured songs, archive footage of Deep Purple in concert, including American footage of "Smoke on the Water" and "Space Truckin'", TV performances and promotional videos, more.

1. Intro 2. First Movement: Moderato - Allegro 3. Second Movement: Andante 4. Third Movement: Vivace - Presto Recorded on September 24th, 1969 at London's Royal Albert Hall, Jon Lord's Concerto for Group and Orchestra really was a meeting of two different worlds.