The Bishops of the United States have issued a new document on music in the liturgy: "Sing to the Lord: Music in Divine Worship."

A first quick reading finds a number of helpful reminders/recommendations, such as:

116. At daily Mass, the above priorities should be followed as much as possible, in this order: dialogues and acclamations (Gospel Acclamation, Sanctus, Memorial Acclamation, Amen); litanies (Kyrie, Agnus Dei); Responsorial Psalm, perhaps in a simple chanted setting; and finally, a hymn or even two on more important days. Even when musical accompaniment is not possible, every attempt should be made to sing the acclamations and dialogues.

117. Proper antiphons from the liturgical books are to be esteemed and used especially because they are the very voice of God speaking to us in the Scriptures. Here, the Father who is in heaven comes lovingly to meet his children, and talks with them. And such is the force and power of the Word of God that it can serve the Church as her support and vigor, and the children of the Church as strength for their faith, food for the soul, and a pure and lasting fount of spiritual life. The Christian faithful are to be led to an ever deeper appreciation of the psalms as the voice of Christ and the voice of his Church at prayer.

118. Music arises out of silence and returns to silence. God is revealed both in the beauty of song and in the power of silence. The Sacred Liturgy has its rhythm of texts, actions, songs, and silence. Silence in the Liturgy allows the community to reflect on what it has heard and experienced, and to open its heart to the mystery celebrated.

With regard the Latin Rite's heritage of Gregorian chant the document recommends:

75. Each worshiping community in the United States, including all age groups and all ethnic groups, should, at a minimum, learn Kyrie XVI, Sanctus XVIII, and Agnus Dei XVIII, all of which are typically included in congregational worship aids. More difficult chants, such as Gloria VIII and settings of the Credo and Pater Noster, might be learned after the easier chants have been mastered.