By 1971, the Art Ensemble of Chicago had become true denizens of the city of Paris and its environ. Regularly playing and recording, they were able to delve deeply into their Great Black Music aesthetic and explore not only the boundaries of free jazz, but also the intricate demands of African folk forms in improvisation. Dynamic, long a part of the AEC's M.O., had become a dominant methodology for the group, as had textural interplay, and nowhere are these more evident than on Phase One. Issued in 1971 on the French America Records imprint, this set has been reissued over a dozen times on LP and CD.