Miserere Mei Deus by Gregorio Allegri - BRASS QUINTET

"Miserere mei, Deus", which translates to "Have mercy on me, O God" in English, is a musical setting of Psalm 51 (50) composed by Gregorio Allegri, an Italian composer. The composition was likely made during the 1630s, under the rule of Pope Urban VIII, specifically for the Tenebrae service at the Sistine Chapel during matins on Holy Wednesday and Good Friday of Holy Week. The Tenebrae service, where the Miserere was typically performed, usually started at dusk, hence its name. The ceremony involved gradually extinguishing candles, one by one.