The Koln Concert (LP)

24 January 1975 proved a memorable, magical night for the 1300 people who witnessed American jazz pianist Keith Jarrett perform a solo recital in the majestic surroundings of Cologne's opera house. The concert was recorded for posterity by ECM Records, who released the recording later that year as a double-album housed in stylish black-and-white artwork adorned with a picture of an Afro-topped Jarrett hunched over the piano. It has since become a classic.