His most famous choral work is the Advent motet "E'en So, Lord Jesus, Quickly Come", which has been performed at the Festival of Nine Lessons and Carols at King's College, Cambridge, though its broadcast by the neighboring Choir of St John's College, Cambridge, in its Advent Carol Service precipitated its popularity.
Manz long served the church as recitalist, composer, teacher, and leader in worship.
[4] A Fulbright grant enabled him to study with Flor Peeters in Belgium and Helmut Walcha in Germany.
The Belgian government invited him to be the official United States representative in ceremonies honoring Peeters on his 80th birthday and his 60th year as titular organist of the Cathedral of Saint Rombout in Mechelen, Belgium.
At that time, Peeters referred to his former student as ‘my spiritual son.’ Manz concertized extensively in North America.
He conducted many organ clinics, participated in liturgical seminars, and appeared as lecturer and recitalist at the regional and national conventions of the American Guild of Organists.
A large gathering in Minneapolis held a "Paul Manz Celebration: Honoring the Life of a Church Musician" where substantial gifts were given to the Ruth and Paul Manz Scholarship for Church Musicians.
His idea for the hymn festival began to germinate when he presented annual organ recitals at Mt.
His motet, "E'en So, Lord Jesus, Quickly Come" is regarded as a classic and has been frequently recorded.