Deep Drilling in Crystalline Bedrock

In Concert With The London Symphony Orchestra is a live album by British hard rock band Deep Purple, recorded on 25-26 September 1999 at the Royal Albert Hall in London with the London Symphony Orchestra, and released on 8 February, 2000 on Spitfire records. The album was a project started in 1999 by keyboardist Jon Lord, who sought to recreate the band's innovative 1969 album, Concerto for Group and Orchestra, of which the original score was lost. With the help of Marco de Goeij, a fan who was also a musicologist and composer, the two painstakingly recreated the lost score, and Lord elected to have the band perform it once more at the Royal Albert Hall, but this time with the London Symphony Orchestra rather than the Royal Philharmonic Orchestra, and with Paul Mann as conductor rather than Malcolm Arnold. The concert also featured songs from each member's solo careers, as well as a short Deep Purple set, and guest musicians such as Ronnie James Dio, the Steve Morse Band, and Sam Brown.