I first came to appreciate Holy Week my freshman year of college when I attended the parish of S. Clement’s, Philadelphia, whose liturgies were long, rich, and full of the majesty of the Triduum. On Holy Thursday they sing des Prez’s Missa “Pange Lingua,” whose music gives a beautiful, haunting look at the events that lie ahead. Here is a video of the S. Clement’s choir singing the Kyrie, with images of Holy Week at the parish playing throughout.