Tenth-century Liturgical Chant In Proportional Rhythm (Masses For Christmas Day And Easter Sunday)

Recorded January 3-5, 1978, at the Chapel of the Good Shepherd, General Theological Seminary, New York Cover illustration / Antiphonale Missarum, Laon, MS 239, fol. 52r, courtesy of the Biblothèque municipale, Laon, France Supplementary commentary enclosed 665 Fifth Avenue address on back cover and labels