Listen to Allegri: Miserere online. Allegri: Miserere is a Latin language song and is sung by Stephen Cleobury, Saul Quirke and Westminster Cathedral Boys Choir. Allegri: Miserere, from the album Chillout: 111 Pieces of Classical Music for Relaxation, was released in the year 2013. The duration of the song is 11:14. Download Latin songs online from JioSaavn.