Bishop Thomas J. Olmsted's series, Singing the Mass

Part 1 of Bishop Olmsted's Series on Singing the Mass "Liturgical Music as Participation in Christ"

Part 2 of Bishop Olmsted's Series on Singing the Mass "A Short History of Liturgical Music"

Part 3 of Bishop Olmsted's Series on Singing the Mass "Sacred Music's Role in Evangelization"

Part 4 of Bishop Olmsted's Series on Singing the Mass "Practical Points for Singing the Mass"

The Musical Shape of the Liturgy

The Musical Shape of the Liturgy, by Dr. William Mahrt.

This is a compilation of articles that were written by Dr. Mahrt over the course of many years. I believe most or all of the articles were originally published in the Sacred Music Journal, but seeing them all in one place is amazing.

Check it out.