This afternoon I had the pleasure of attending a concert of choral works by Maurice Duruflé performed by Florilegium Chamber Choir. They sang Duruflé’s Requiem along with his Quatre motets sur des thèmes grégorians (Four motets on Gregorian Themes), and a setting of the Lord’s Prayer. The choir sung beautifully and the intensity of Duruflé’s works were certainly rendered in a compelling manner—especially the end of the Requiem‘s final movement, “In Paradisum”—but the real joy of the afternoon was due to a thunderstorm that rolled in during the Requiem. In fact, the whole concert experience was almost invaded by the sounds of the outside world, not only by the thunderstorm, but also by the busy noises of traffic and people on Manhattan’s Upper West Side.