Alleluia - Post Partum by SOLI Sisters published on 2013-02-01T12:55:17Z The Gregorian Chant Propers for the Solemnity of Mary, Mother of God, Mass IX and a compilation/arrangement of chanted Compline in English based on the Liber Usualis by the Sisters of Our Lady Immaculate. Chanted, recorded, produced by the Sisters of Our Lady Immaculate. Genre Gregorian Chant