Listen to 3 Motets, Op. 38: III. Beati quorum (Chorus a cappella) online. 3 Motets, Op. 38: III. Beati quorum (Chorus a cappella) is an Unknown language song and is sung by Choir Of King's College, Cambridge and Stephen Cleobury. 3 Motets, Op. 38: III. Beati quorum (Chorus a cappella), from the album Stanford: Evening Services in C & G etc, was released in the year 2009. The duration of the song is 3:38. Download Unknown songs online from JioSaavn.