PRIMA MATERIA "Prima Materia" 2 x LP Box" Special 10th anniversary edition & first time available on vinyl. A totally immersive listening experience and a true testament to the power and range of the human voice in all its harmonic splendor, as poignantly stated by Terry Riley in the liner notes: “As is the case with La Monte Young's Theater of Eternal Music, David Hyke's Harmonic Choir and Paulin