... event in the Roman Catholic Liturgy was the Mass Wrapped around the sacrament of Holy Communion, the Mass consisted of two parts called the Ordinary, and the Proper The Proper of the Mass was the ... Generally their music was a monophonic line which they accompanied on the lute or harp, probably using one of the Church modes These poet/musicians sang of nature, of love, of knightly legends, and of ... Dufay, and Machaut were the leading composers of the earliest sacred polyphonic music Many other leading composers of the Middle Ages remain anonymous this was not yet an age of musical personalities...