Continuing Radio 3's Christmas and New Year series of highlights from the 2007 BBC Proms, Christopher Cook introduces a concert in which two of the UK's leading choirs join forces in a programme of choral blockbusters from the late Renaissance, including the modern premiere of Alessandro Striggio's Mass, a 40-voice piece that had lain forgotten for 450 years in a Paris library. Striggio: Motet (Ecce beatam lucem) Lassus: Aurora lucis rutilat (Motet and Magnificat) Tallis: Spem in alium Striggio: Mass in 40 and 60 parts (Ecco si beato giorno) BBC Singers The Tallis Scholars His Majestys Sagbutts and Cornetts Peter Phillips, Davitt Moroney (conductors).