Here are the Hymns that are found in the Office of Michaelmas Day, taken from the book by Rev. Fr. Aquinas Byrnes
Hymns of the Dominican Missal and Breviary (St. Louis, MO: B. Herder Book Co., 1943).
Note: This is the ancient Latin text that differs from that in the Roman Breviary, since the Hymns of the Roman Breviary were heavily edited by order of Pope Urban VIII. The ancient text is kept in the Breviaries of the Dominicans, Calced Carmelites, Cistercians, Benedictines, Norbertines, Carthusians, and some other Religious Orders.