Listen to Allegri: Miserere online. Allegri: Miserere is a Latin language song and is sung by Saul Quirke, Westminster Cathedral Boys Choir and Stephen Cleobury. Allegri: Miserere, from the album The 101 Most Essential Classical Music Pieces Ever, was released in the year 2012. The duration of the song is 11:14. Download Latin songs online from JioSaavn.