Coleman Leslie McCann, known as Les McCann, is arguably the most soulful jazz pianist of the sixties. All you have to do to be convinced of this is to go and listen to him, all business ceasing, with Eddie Harris, in concert in Montreux, on June 21, 1969. This recording is a monument in the history of soul jazz.

But before this concert, the trio of Les McCann with Herbie Lewis and Ron Jefferson, imposed a new style characterized by joy and pleasure, to play, to groove, to listen. Impossible in a Les McCann concert not to participate in his joy, in his desire to share, impossible not to beat time.