Summary: We set the stage for a deeper understanding of the principles in Pope Pius X's 1903 motu proprio Tra le Sollecitudini by taking a look at the musical scene in which the motu proprio appeared and the evolution of the document. Our guest is Dr. Susan Treacy, a convert to the Catholic faith, and musicologist who has inspired many Catholic university students to love the Church's treasury of sacred music through her years teaching at Franciscan University of Steubenville and Ave Maria University.
