http://www.emmanuelmusic.org/
Trinity Church
http://www.trinityboston.org/msc.asp
First Second
http://home.sprintmail.com/~fscboston/
Church of the Covenant
http://www.churchofthecovenant.org/choir/
King's Chapel
http://www.kings-chapel.org/
Church of the Advent
http://www.theadvent.org/music.html