“Miserere”.
Composed By: Allegri.
Sung By: The Tallis Scholars.
Director of Music: Peter Phillips.
In February 1994, Peter Phillips and The Tallis Scholars performed on the 400th Anniversary of the death of Palestrina, in the Basilica of Santa Maria Maggiore, Rome, where Palestrina had trained as a Choirboy and later
worked as Mæstro di Cappella.
The following Text is from Wikipedia - the free encyclopædia.
It was composed during the reign of Pope Urban VIII, probably during the 1630s, for the exclusive use of The Sistine Chapel during the Tenebræ Services of Holy Week, and its mystique was increased by unwritten performance traditions and ornamentation.
It is written for two Choirs, of five and four voices, respectively, singing alternately and joining to sing the ending in nine-part polyphony.