WHAT IS SACRED MUSIC?
“To give an answer to the question, What is sacred music?, we must answer that it is the great treasury of music, written over the ages by the greatest composers for use in the sung liturgy of the Roman Catholic Church, beginning with the Gregorian melodies and continuing on through the polyphonic pieces of the middle ages and the renaissance, up to the orchestral settings of the last three centuries and into our own time…” Monsignor Richard J. Schuler
Something to consider: What has happen to sacred music?
Saint Thomas the Apostle Catholic Church 