I have around 100 albums recorded on the ECM label. I know Paul Bley has been a topic recently here and this live album that Bley, along with Gary Peacock and Paul Motian recorded for ECM definitely is in my top 10 ECM favorites department.
(9) When Will The Blues Leave (Live at Aula Magna STS, Lugano-Trevano / 1999) - YouTube
(9) When Will The Blues Leave (Live at Aula Magna STS, Lugano-Trevano / 1999) - YouTube