7 Reasons You Need to Crack Open that Mass Hymnal...
He Who Sings Prays Twice (psycho-social effects of singing )
Musicam Sacram: Instruction on Music in the Liturtgy (1967)
Priorities of Singing the Mass
Should you Sing at Mass Even If you can't carry a tune?
Singing the Mass (Bishop Olmstead)
The Purpose of the Parts of the Mass We Sing
Tra Le Sollecitudini - Instruction on Sacred Music (Pope Pius X)
Why Do Catholics Sing at Mass?