condition (record/cover): NM / EX - Gatefold sleeve with distributor's sticker on front.

A crucial document of the New York School in concentrated form. Christian Wolff, who gave John Cage his copy of the I Ching in 1950 - an act that helped redirect the course of American music - developed his own compositional language of radical openness, works defined more by conditions for performer interaction than by fixed notation. Issued on Mainstream Records, one of the few American labels of the era willing to give this music commercial release, this split LP captures two of the school's most distinct voices in proximity.