Music of Vatican City a result, reformers like Palestrina revised the rules behind Gregorian chanting, which were printed by the Medici Press in Rome; these reforms continued to be followed to the present day. A traditional musical instrument was the pipe organ. After the end of the Papal States the Popes' ability to sponsor composers and musicians waned. However it did not end entirely nor did interest in the subject. Pope Pius X and Pope Pius XII both wrote on the subject. In modern times John Harbison and Gilbert Levine have composed or conducted for the Vatican. Although not of the Vatican a Christmas
Christianity in the 19th century prayers, initiatives, and the acceptance and support of Marian congregations. Since the 19th century, popes began to use encyclicals more frequently. Thus Leo XIII, the Rosary Pope, issued eleven Marian encyclicals. Recent popes promulgated the veneration of the Blessed Virgin with two dogmas: Pius IX with the Immaculate Conception in 1854, and the Assumption of Mary in 1950 by Pope Pius XII. Pius IX, Pius XI, and Pius XII facilitated the veneration of Marian apparitions such as in Lourdes and Fátima. The Second Vatican Council highlighted the importance of Marian veneration in "Lumen gentium". During the Council, Paul VI proclaimed