The story of a cancelled plane flight, hitchhiking, a missed dinner and ... a broken piano which became the best selling jazz album by a solo performer.
I always thought that the "clunking" sound was more of Jarrett's idiosyncrasies, and not that he was fighting broken pedals!
This is a more extensive version of the story from the BBC.
Unphased by rejection from Columbia's Clive Davis (Jarrett was in good company - being fired along with Duke Ellington), he was supported by the vision of ECM (a new label at the time) who liked Keith's proposal of doing an improvised solo concert.
Here's an introductory section of the movie (Köln 75), documenting the effort.
Non-German speakers can turn on subtitles and translation.
I love the scene when the flawed piano is inspected and the dialog that ensues.
