It's the Köln concert actually. The internet is pretty cool - you can look these things up when you don't know anything about them. https://en.wikipedia.org/wi

It's the Köln concert actually. The internet is pretty cool - you can look these things up when you don't know anything about them. https://en.wikipedia.org/wiki/The_Köln_Concert https://en.wikipedia.org/wiki/The_Köln_Concert Also, this JazzKeys post is worse than useless.