John J. Davye's Missa Brevis for SATB choir a cappella.The Missa Brevis is a Mass in which each movement is based on either a four or five note tone-row (of a major second minor third and perfect fourth) with various canonic devices (inversion retrograde etc.) used throughout.Kyrie: Tonality of D - four note rowGloria: Tonality of G- five note rowSanctus: Tonality of C - four note rowBenedictus: Tonality of C - five note rowAgnus Dei: PolytonalityThis Miss Brevis is in both Latin and English.