After the talk, the Votive Mass of the Holy Ghost was sung; the Propers and the Sequence were sung in the original Gregorian chant, and the Ordinary consisted of polyphonic elaborations of the chant ...

Around this polyphony you will hear much of the proper chant associated with these liturgies, as sung to this day at Westminster Cathedral. Since polyphony is so often based on chant melodies ...

New York Polyphony, a quartet of male voices acclaimed ... of diverse ancient and modern music ranging from 12th century chant and Franco-Flemish sacred works and from Renaissance madrigals ...