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"December 4, 2003 is the Fortieth Anniversay of Sacrosanctum Concilium
An apostolic letter by John Paul II was made public on the occasion of the 40th anniversary of the
constitution 'Sacrosanctum Concilium' on sacred liturgy. The document, which is divided into 15 sections and a conclusion, is dated December 4, 2003, the anniversary of the constitution's promulgation. It is only in Italian at this time, we will bring it to you as soon as we have an English translation.

John Paul II released a Letter for the first centenary of the Motu Proprio of Pope Pius X, 'Tra le Sollecitudini' on sacred music (December 3, 2003). It is only in Italian at this time, we will bring it to you as soon as we have an English translation. "