Pianist Keith Jarrett, bassist Ron McClure and drummer Jack DeJohnette dance around the dervish which is Charles Lloyd, augmenting the music of the quartet with all the liberties, all the daring and finally all the craziness that allow the leader to take flight to his improvisational territories of predilection. The music is carnal, expressive as hell itself and knows how to take it's time through changing climates like so many steps mounting to a kind of grandiose ecstatic crescendo. And that which strikes one today, listening to this music aged more than five decades, is that it remains totally unwrinkled and that the freedom and freshness it exudes, while being an unmistakable announcement of the upcoming Free Jazz as well as different streams of "spiritual" music, never lose the listener but launches him on a breathtaking journey from which he returns transformed and... bettered! In addition, one also has the impression that the art of each of the four instrumentalists, who have not stopped evolving since then and have all been in their own rights acclaimed and recognized, already contains all the nuggets and qualities of their future productions and projects; without any of them having to be apologetic for the effects of time or the harsh law of changing styles with regard to this legendary Montreux performance.