Trinity Sunday 2025
Processional hymn: Holy, Holy, Holy, 929
Recessional hymn: O God, Almighty Father, 977
Kyriale: III, 705; Credo II, 772
Responsory: Tibi laus, Orlandus Lassus
Communion antiphon: Benedicimus Deum, John Mason
Following the offertory chant the Responsory Tibi Laus by Orlandus Lassus will be sung. Those who have assisted at Tenebræ will recall that office is a combination of Matins and Lauds which are the first two hours of the Divine Office. During Matins, each of the nine readings are followed by a responsory. Tibi Laus is the refrain portion of the fifth Responsory from Matins today. The responsory is usually in two parts: a respond (or refrain) which is often split in two, and a verse. In the second half of Lassus’s setting, the words O beáta Trinitas are sung three times with three of the four voices in rhythmic unison which emphasizes the “three in one.”
Orlandus Lassus (c.1532–1594) is known for the mature polyphonic style in the Franco-Flemish school. He wrote over 2,000 works in Latin, French, Italian, and German both sacred and secular. Lassus along with Giovanni Pierluigi da Palestrina and Tomás Luis de Victoria are the most influential composers of the late Renaissance.