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
Shane MacGowan and The Popes band and was replaced by Greg Courtney on bass. During 2012 and 2013, this lineup of The Popes toured extensively in Europe and Australia. A new album with new material written by Paul McGuinness and the new line-up, and previous material telling the story of The Popes, was planned for 2014, although the band has been on an extended hiatus due to a brain injury suffered by McGuinness in November 2013 (see the next section below). A memorial for McManamon in March 2007 saw Bob Dowling, Andy Ireland, and Brian Kelly reunite as The Popes, joined by Miriam Kavana and