This 4-CD box set reprises the history-making recordings “Crystal Silence” (1972), “Duet” (1978) and the live double album “In Concert, Z?rich, October 28, 1979”. The duo was a seldom-tested format in jazz when pianist Chick Corea and vibraphonist Gary Burton, at the instigation of Manfred Eicher, came together for “Crystal Silence”, but its luminous music proved a resounding success. Both “Duet” and the Z?rich recording won Grammy awards, and Chick and Gary toured to worldwide acclaim, astonishing audiences with their improvisational fluency. They have continued to make music together, for almost 40 years now: “Crystal Silence, The ECM Recordings” shows how the story began. Two live selections, “I’m Your Pal/Hullo Bolinas” and “Love Castle”, appear on CD for the first time in this collection. Booklet includes liner notes by Peter R?edi and Steve Lake, and photos by Ib Skovgaard Peterse and Ralph Quinke.