Title: Musica sacra
Subjects: Liturgy, Vatican Council (2nd : 1962-1965). Constitutio de sacra liturgia, Catholic Church, Liturgie, Church music, Katholische Kirche, Sacrosanctum concilium, Kirchenmusik, Catholic church, liturgy, Vatican council (2nd : 1962-1965), Church music, catholic church, Vatican Council (2nd : 1962-1965 : Basilica di San Pietro in Vaticano). Constitutio de sacra liturgia