Arizona Girlchoir Staff & Board

Our experienced choir staff will always provide the finest in vocal instruction, choral singing, movement, music theory, and sight singing.

Sue Kenly Marshall

Sue Marshall

Artistic Director

A vocal performance graduate of Arizona State University, Sue Marshall minored in organ studies and piano. She has been a soloist, organist, and children’s choir director in a number of Valley churches. She performed for many years as soprano and soloist with the Bach and Madrigal Society (which became the Phoenix Bach Choir and is now the Phoenix Chorale) and is a teacher of private voice and piano. Her experience with children’s choirs began with church choirs, and soon moved to include the Phoenix Girls Chorus. Ms. Marshall first served as an assistant director and then as the Artistic Director from 1986 until 2010. In her tenure as the Artistic Director, she established a complete choral education and touring program for the organization, bringing in fine instructors in the fields of sight singing, music theory, and choreography. All of that expertise was brought to fruition in the founding of the Arizona Girlchoir in the spring of 2011.

“While my motivation has always been to produce fine music and accomplished singers, my primary focus is to inspire in them a love of singing and a deep respect for music. It is also important to provide music performance and education in an atmosphere of mutual trust and support.”

Gail Quackenbush

Gail Quackenbush

Assistant Director and Accompanist

Gail began playing the piano in church as a child and has been accompanying choirs and soloists since she was a teenager. She received her B.A. from Grand Canyon University, summa cum laude, in applied piano. Her private piano studio is now in its 19th year. Gail has directed both children’s choir and adult choir at her church. She also enjoys singing in choirs and participates in her church adult choir when not accompanying them. Gail has memberships with national, state, and local music teacher associations and is a nationally certified piano teacher with MTNA. She continues her involvement with these professional organizations by attending conventions and entering students in events and competitions as well as having leadership positions on the board and serving on committees.

Joan Kramer

Joan Kramer


Joan Kramer, choreographer, developed her love for movement throughout her lifetime beginning with ballet at age seven, continuing with competitive skating, and into her career teaching dance and fitness. She started singing in choirs at age five and performed in musicals during high school and college. Joan continued with ballet during college where she majored in education with a specialization in performing arts and minored in physical education. She continues her personal dance adventures with ballroom dance. Her choreography experience includes youth choirs, school productions, and adult classes.

Arizona GirlChoir