The 1st volume of this beautiful collection includes Gregorian Chants from the Liturgy of Apostles, Martyrs, and Virgins, with Introits, Graduals, Alleluias, Offertories, Communion pieces, Antiphons and Hymns. For over a century and a half, the Monks of Solesmes have chanted the liturgy of the Church, while at the same time achieving remarkable breakthroughs in musical scholarship. The clarity, accuracy - and haunting, compelling power - of their sound has no equal. According to experts, the recordings of the Monks of Solesmes are the purest, most genuine, and finest recordings of Gregorian Chant available anywhere.