 At the end of 1942 Bartolucci went to Rome in order to deepen his knowledge of sacred music.Having served as Deputy Master of the St. John Lateran, in 1947 he was appointed Master of the Liberian Choir of St. Mary Major, succeeding Licinio Refice, absent.In 1952, on the advice of Lorenzo Perosi, he was appointed Deputy Master of the Sistine Chapel.