Home / Music / How long did Keith Jarrett take to improvise The Köln Concert?Music linernotes album music keith-jarrettHow long did Keith Jarrett take to improvise The Köln Concert?The entire Köln Concert is a single continuous improvisation, roughly 66 minutes long. Keith Jarrett walked on stage and made it up as he went — split across two LP sides. Search Amazon As an Amazon Associate I earn from qualifying purchases.Related NotesExploreExploreExplorePrevious On which album does David Bowie's "7 Years in Tibet" appear?Next How does Górecki's later style differ from his earlier minimalism?