Bruce Gertz, bass professor at Berklee College of Music recently spoke with ArtistWorks instructor John Patitucci at a convention for the International Society of Bassists on the topic of jazz improvisation:

"With Wayne [Shorter] the idea is that we would compose in the moment. So it's free but, it assumes you're going to be sensitive and create together. The stuff that we do is tonal, melodic, and harmonic - it's not just anybody playing whatever… it's ear training on a very steep curve because you have to assimilate to whatever the next person is playing and try to make a contribution, in a communal way.

There are grooves that sometimes occur and things that are juxtaposed. It's really meant to be composition in real time. That's what Wayne's version of it is, and I love it.