“There once was a word used: swing. Swing went in one direction, it was linear, and everything had to be played with an obvious pulse and that’s very restrictive. But I use the term ‘rotary perception.’ Imagine a circle surrounding each beat—each guy can play his notes anywhere in that circle and it gives him a feel­ing he has more space. The pulse is inside you. When you’re playing with musicians who think this way, you can do anything.” — Charles Mingus, Beneath The Underdog (Alfred A. Knopf, New York, 1971)