The Tucson Arizona Mass Choir was formed in the fall of 1999, under the direction of Ms. Dorothy Reid. Ms. Reid has been a musician since she was five years old; at the age of nine, she began playing for the First Baptist Church of Fayette, AL, where her grandfather was pastor. Ms. Reid's dream has been to organize a community mass choir which includes all persons with an interest in praising our Lord and Savior Jesus Christ, through a ministry in songs of praise and thanksgiving, and with that in mind, she began organizing the Tucson Arizona Mass Choir. TAMC grew out of a music theory class Ms. Reid taught at Friendship Missionary Baptist Church. Her goal is one hundred voices.  In January of 2009, TAMC was pleased to be included among the performers during the Cantor's Concert at Congregation Anshei Israel in Tucson. Just two days after that event, choir members traveled to Phoenix to participate in and sing for Arizona's Governor Janet Napolitano to honor and wish her well as she departed the state to take up a position in President-elect Barack Obama's cabinet.  In November of 2009, TAMC hosted a joyful, spirit-filled Gospel Music workshop, led by Bishop Todd and Rev. Linda O'Neal of Cincinnati, OH.  The weekend workshop culminated in the choir's tenth anniversary concert, a standing-room-only event celebrated at St. Mark's Presbyterian Church in Tucson.

As part of its community outreach ministry, TAMC has sung at a variety of events and venues over the past nine years. Some of these include the Tucson Meet Yourself festival, benefit concerts for the Tucson Interfaith HIV/AIDS Network (TiHAN), the Arizona Kidney Foundation, the rededication of Tucson's Stone Avenue Temple, the Family Arts Festival, and a retirement party honoring Tucson councilman Daniel Eckstrom. The choir was especially honored to sing for Arizona Governor Janet Napolitano during a women's conference for which she was the keynote speaker. In October of 2004, TAMC sang during the United Supreme Council Convention of the Order of Masons in Tucson, and, that same month, enjoyed the opportunity to sing for the residents of Friendship Village Retirement Community in Tempe, AZ. TAMC has also been pleased to sing for the residents of the Marshall Home for Men in Tucson. The choir has appeared on Tucson Access Television's "Touch Someone" program, and was honored to serve as the opening group at a concert given by Gospel recording artist Jesse Dixon. TAMC has sung at numerous churches in the Tucson area, including Southside Presbyterian, Friendship Missionary Baptist, the Davis-Monthan Air Force Base (IGS anniversary), Trinity Presbyterian (on the occasion of the church's 100th anniversary celebration), Phillips Chapel CME, Saguaro Christian Church, Pilgrim Rest Baptist, Rising Star Missionary Baptist, and St. Augustine Cathedral, as well as St. Paul Missionary Baptist Church in Sierra Vista. In November of 2003, TAMC responded to an invitation to sing at Shepherd of the Valley Lutheran Church in Merced, CA, and performed its first out-of-state concert.  In late summer / early fall of 2005, the choir recorded its first CD, a collection of twelve songs titled "To God be the Glory!"