Anthony Braxton plays a whole range of saxes and clarinets from sopranino to bass, but he's best known as an alto player, he's also professor of music at Weslyan University in Connecticut where he teaches composistion, music history and improvisation.
here he is playing solo alto -
glad you liked(?) my soundcloud stuff, I'll be expecting a visit from the jazz police - "step away from the saxophone and put your hands in the air. You have the right to remain silent etc"