After:
Recently, I came across the jazz pianist called Keith Jarrett while I was watching YouTube. His legendary Koln Concert took place in 1975. According to the YouTube channel that posted the recording, the piano used in the concert was a very old untuned piano. The high keys produced a metallic sound and the pedal didn’t work on the low keys. He played his original jazz beautifully with the piano using mainly the middle keys.
Recently, I found a jazz pianist, Keith Jarret while I was watching YouTube. The ledgendary Koln Concert took place in 1975. According to the YouTube channel, the piano that was used in the concert was very old untuned piano. High tone keys were producing metallic sound and the pedal didn’t work on low tone keys. He played his original jazz beautifully with the piano using mainly middle tone keys.
https://youtu.be/u-RZliAAe1I