Pianist Keith Jarrett’s inspired and lyrical performance, immortalized here as The Köln Concert, is rightfully remembered as an astonishing feat. Not only was Jarrett bucking the contemporary trends of fusion and the avant-garde through his free-wheeling, tonal piano music, but he was completely improvising while he did it. A seamless listening experience, ideas flow effortlessly from one to the next, all part of a cohesive whole. Jarrett nearly cancelled his performance that night in 1975 due to the wrong Bösendorfer piano, in poor condition, being delivered to the opera house stage. Luckily for all of us, he changed his mind.