Hyperion presents a second volume of music from the Conductus repertory - the least-known genre of medieval music - performed by tenors John Potter, Christopher O'Gorman, Rogers Covey-Crump, three singers who combine expert knowledge of the music with voices of unearthly beauty. This album contains poems set to music from thirteenth-century England and France. The subjects range from straightforward exhortations to the Virgin Mary to criticisms of the Papal Curia and a depiction of the student riots in Orleans in 1236.