You can find the complete articles at these links:
- Singing the Mass, Part One: Liturgical Music as participation in Christ
- Singing the Mass, Part Two: A short history of liturgical music
- Singing the Mass, Part Three: Sacred music's role in evangelization
- Singing the Mass, Part Four: Practical Points for Singing the Mass
In part four, Bishop Olmstead describes the parts of the Mass that are meant to be sung according to the hierarchy of their importance, according to the 1967 instruction Musicam Sacram. This is significant, because in the 1972 document, Music in Catholic Worship, the US bishops actually taught an almost “upside-down” order of importance.
Thanks be to God for Bishop Olmsted's clarity on the musical structure of the Roman Rite, and on the hierarchical nature of the music that is proper to the sacred liturgy….[W]e have here a clear and authoritative statement from a member of the US Conference of Catholic Bishops who seems to be stepping forward into a leadership role in the US episcopacy on matters of liturgy and sacred music.