How do you imagine a free jazz concert?
What do you think about Contemporary Jazz?
Everything you need is to listen to the work done by two reeds that have no limits, no problems, no rules.
Why do you have to listen to them? Simple, because you'll never forget them, but, in the same time, you'll never remeber what they are playing.
Is that all right? No? Well, probably you need a copy of Wake Up With The Birds

Carlo Actis Dato: Tenor and Baritone Saxophones, Bass Clarinet
Kazutoki Umezu: Soprano and Alto Saxophones, B flat and Bass Clarinet