Keith Jarrett -- The Köln Concert: Part I

The Köln Concert is a recording by the pianist Keith Jarrett of solo piano improvisations performed at the Cologne Opera House in Cologne (German: Köln) on January 24, 1975 before a live audience. It was released in the autumn of 1975 by the ECM Records label to critical acclaim and went on to become the best-selling solo album in jazz history, and the all-time best-selling piano album with sales of more than 3.5 million.