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
Two by Twos in Dublin, Glasgow and Belfast during 1899. Annual conventions, modeled after the evangelical Keswick Conventions in England, began to be held regularly in Ireland starting in 1903. Later that year, William Irvine, accompanied by Irvine Weir and George Walker, took his message to North America. Missions to continental Europe, Australia and Asia followed. By 1904, the requirement to "sell all" was no longer mentioned in sermons. A two-tiered system was instituted that made a distinction between homeless itinerant missionaries (called "workers") and those who were now allowed to retain homes and jobs (called "friends" or "saints"). Weekly home meetings began