http://www.usccb.org/liturgy/SingToTheLord.pdf
2007-oct-09 news release about reworking MCW
http://www.usccb.org/comm/archives/2007/07-155.shtml
2007-nov-12-13-14-15 Sing to the Lord: Music in Divine Worship
no recognitio
2007-nov-30
PDF version available on USCCB website
2008-jun-20
Printed booklet version available from usccbpublishing
http://www.usccb.org/comm/archives/2008/08-093.shtml
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.