R. Mark Green is the founding Director of the Avondale Children's Choir. He holds a B.S. Degree in Music Education from The University of North Georgia in Dahlonega, Georgia and Master of Church Music Degree from The Southern Baptist Theological Seminary in Louisville, Kentucky. A longtime member of the American Choral Directors Association and The Chorister's Guild, Mr. Green has over 45 years of choral directing experience. Affectionately known as "Mr. Mark" to his singers, Mr. Green serves as the fulltime Minister of Music at the First Baptist Church of Avondale Estates,Georgia, a position he has held since 2006.

Founded in 2009, the Avondale Children's Choir (ACC) is a community choir committed to excellence in musical artistry and expression. Under the leadership of Founding Director, R. Mark Green, the ACC has a membership of over 140 singers age six to eighteen in four ensembles. The ACC has performed in concerts with The Atlanta Opera Workshop, The DeKalb Choral Guild, The Mercer University Singers, The DeKalb School of the Arts, Decatur High School, and others. Twenty-three singers of the Avondale Children's Choir performed in the DCINY Concert for Treble Voices under the baton of Dr. Cristian Grases in June 2016.

Tammy Owens has taught instrumental and choral music at the secondary level for the past 33 years and has served as the Secretary/Treasurer of the Northern Nevada Music Educators Association for the past 10 years. She is currently beginning her 17th year in the Douglas County School District in Minden, Nevada, where she is the director for the Douglas Dynamics, Concert Choir, Wind Ensemble, Concert Band, Jazz Band, Steel Drum Ensemble and Marching Band.

The Douglas Dynamics is the select a cappella choir at Douglas High School in Minden, Nevada. They consistently receive superior ratings at all of the Nevada and California festivals in which they have attended. The Douglas Dynamics do an average of 20 community performances a year. Because of their popularity within the community it is often necessary to book their events a year in advance, particularly around the holiday season. They are all very excited to be making their first trip to New York City.

Kari Doepke-Warnes is in her twentieth year serving as Director of Choral Activities at Brookfield East High School in Brookfield, Wisconsin, where she provides leadership to a choral program that includes four curricular ensembles, four extra-curricular ensembles, and over 180 singers. Additionally, she is the vocal director for the annual musical. Doepke earned her undergraduate degree in Music Education from Carroll College (Wisconsin) and a master’s degree in choral conducting from the University of Wisconsin-Milwaukee. Most recently, Ms. Doepke completed post-graduate music studies at Vandercook College of Music in Chicago. She carries professional memberships with ACDA, NAfME, and the VoiceCare Network, and maintains a private teaching studio comprised of area students.

Dedicated to academic and human excellence, the Brookfield East High School choral program is known nationally for having received a Grammy “Signature Gold” Award from the NARAS Foundation. Building upon this honor, the choral department continues to combine the strength of parental and administrative support with talented students and high artistic expectations to maintain its distinction as one the finest high school programs in the state of Wisconsin. Under the direction of Kari Doepke-Warnes, the Spartan choirs have performed in a variety of choral festivals, conventions, and college invitationals throughout the years that have taken them to such memorable locations as Washington D. C., New Orleans, and…New York City!

Joseph Zachowski is the Choral Director at Washington Township HS in Sewell, New Jersey. He is a member of NAfME, SJCDA, and ACDA. He received his Bachelor of Music in Music Education from The College of New Jersey (’04), and a Master of Arts in School Administration from Rowan University (’16). Mr. Zachowski is in his sixteenth year at Washington Township, where he directs the Mixed Chorus, Treble Chorus, Chorale, and two a cappella choirs. He is excited to share this amazing experience with his students and is honored to perform at Carnegie Hall under the direction of Eric Whitacre.

Washington Township HS is located 15 minutes southeast of Philadelphia in Sewell, NJ. With a population of 2300 students, WTHS offers a wide range of music courses including multiple levels of choir, band, orchestra, guitar, theory, and technology. TWP Choir has a membership of 180 students, with three large ensembles meeting daily and small ensembles after school. TWP Choir performs regularly at school, community, and regional festivals, including the annual NJACDA HS Festival. In addition, TWP Choir holds an annual Pops Concert which has raised funds for Mother’s Cupboard, Stomp Out Bullying, The National MS Society, and Alex’s Lemonade Stand.