* Olivier Messiaen’s O Sacrum Convivium * Louis Vierne’s Messe Solonelle * Quatre motets pour le temps de penitence by Francis Poulenc, and * Charles-Marie Widor’s Messe a deux choeurs et deux orgues Charles-Marie Widor is best known for the Toccatta, the finale from his Fifth Symphony for Organ. The Mass for Two Choirs and Two Organs was originally written in 1878 for a choir of Baritones – the Chorus of the seminary next door to St Sulpice in Paris,…