VATICAN-CAN:Pope Benedict XVI puts the Christ back in Christmas with the just-released “Alma Mater: Music from the Vatican”, an album of eight pieces of modern sacred music performed by the Royal Philharmonic Orchestra of London. And Ben? He speaks and prays over the music in Latin, Italian, Portuguese, French and German – and when he’s finished putting Berlitz to shame, he leads the choir in a Regina Coeli chant. Nice. GET IT: $11.99 at J&R, 23 Park Row, 212-238-9000.