Agnus Dei (liturgy) Agnus Dei (liturgy) In the Mass of the Roman Rite and also in the Eucharist of the Anglican Communion, the Lutheran Church, and the Western Rite of the Orthodox Church the Agnus Dei is the invocation to the Lamb of God sung or recited during the fraction of the Host. The Syrian custom of a chant addressed to the Lamb of God was introduced into the Roman Rite Mass by Pope Sergius I (687–701) in the context of his rejection of the Council of Trullo (692), which was well received in the Byzantine East and called the Quinisext Council, but
Requiem for a Tribe Brother reprise of the "Hosannas" from the previous movement. In common with the second movement, the "Agnus Dei" is a slow chorale, featuring a highly pungent harmonic language and many unusual shifts of key. This movement features two soprano soli which float above the rest of the choir throughout. A fast and fiery dance primarily for tenors, built on an ostinato figure in the basses. Towards the end of the movement, there is a brief reprise of material from the opening "Requiem aeternam". The serene concluding movement, in C major, derives its melody from the opening of the "Song of Hope"