HI-ACDA Executive Committee


The Executive Committee of Hawaiʻi ACDA is a dedicated group of volunteer leaders committed to advancing the art of choral music in the state of Hawaiʻi. This committee is comprised of key officers who work collaboratively to provide strategic direction and oversee the implementation of its initiatives. The Executive Committee ensures Hawaiʻi ACDA remains responsive and agile, fostering a vibrant choral community throughout Hawaiʻi.


Christopher Serrano

President

Mr. Christopher Serrano Mr. Christopher Serrano is the Music Instructor at Ala Wai Elementary School and serves as President, Elementary Festival Chair, and Webmaster for the Hawaiʻi Chapter of the American Choral Directors Association, as well as Membership Chair for Western Region ACDA. He holds a B.A. in General Music from Jacksonville State University, a Post-Baccalaureate Certificate in K–12 Music Education from the University of Hawaiʻi at Mānoa, and a Kaʻohekani Hawaiian Music Certificate from Windward Community College. He also holds certifications in both Kodály and Orff-Schulwerk approaches to music education.

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As a performer and conductor, Mr. Serrano has collaborated with a variety of ensembles, institutions, and organizations across Hawaiʻi, including the University of Hawaiʻi at Mānoa, Hawaiʻi Pacific University, Central Union Church, Early Music Hawaiʻi, and the Windward Choral Society. From 2020 to 2024, he served as Music Director at Church of the Crossroads. His work in these settings reflects a wide-ranging repertoire spanning early, contemporary, multicultural, and community-based musical traditions.

Mr. Serrano has been recognized for his leadership in both classroom and community settings. At Ala Wai Elementary, he has helped establish a comprehensive music curriculum for students in Pre-K through Grade 5, contributes to school-wide initiatives supporting Hawaiian cultural education in collaboration with ʻĀina Aloha Pathways, and has developed several afterschool music programs. These include the Menehune Singers, an auditioned elementary choir he founded in 2024, as well as opportunities in ʻukulele, percussion, and creative music-making.

In recognition of his contributions, Mr. Serrano was named the Rotary Club of Honolulu Sunset’s 2024 Teacher of the Year. Through his work at the school, state, and regional levels, he remains committed to culturally responsive pedagogy, creative exploration, elemental music-making, and expanding inclusive, community-centered choral opportunities throughout Hawaiʻi and the Western region.

Alec Schumacker

Vice President

Dr. Alec Schumacker is the Director of Choral Activities and Assistant Professor of Music at the University of Hawai‘i at Mānoa.  He presently serves as the Vice President of the Hawai‘i Chapter of the American Choral Directors Association.  He completed his DMA in Choral Conducting at the University of Miami, where he studied with Joshua Habermann and Karen Kennedy.  

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An active educator and sought-after presenter, Alec delivered lectures at the 2023 and 2019 International Kodály Symposia in Los Angeles and Malaysia, the 2020 Western Division ACDA conference in Salt Lake City, the 2018 and 2016 Asia Kodály Symposia in Taiwan, the 2017 National ACDA conference in Minneapolis, and various others.  His written work on incorporating popular music in the choral curriculum was recently published by GIA in the textbook Becoming Musical.

An award-winning composer and arranger, Alec’s choral music is published by Alliance Music Publications, earthsongs, Hinshaw Music, Santa Barbara Music Publishing, and World Projects.  

Aaron Scholtz

President-Elect

Mr. Aaron Scholtz serves as the Choir Director at Waipahu High School and as Secretary for HI-ACDA, and holds a Bachelors of Education in Music from the University of Hawaiʻi at Mānoa. Since 2016, the choral program at WHS has more than doubled in enrollment under his direction and has flourished from a single group to three thriving choral ensembles representing various levels and skill. Since Fall 2024, he has also served as a lecturer at the University of Hawaiʻi–West Oʻahu, where he leads the University Chorale.

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The WHS choirs have consistently received high marks for ensemble performance and music literacy at various festivals, such as the Maui Choral festival in 2020, where Aaron served as the director for the festival choir. Prior to his tenure at Waipahu, Aaron served at Kapolei High School from 2012 to 2016, where his roles included Choir and Band Director, Assistant Marching Band Director, and Fine Arts Department Head. During his time at KHS, Aaron coordinated multiple events including the Kapolei Marching Band Festival and the Kapolei Choral Festival.Beyond his educational contributions, Aaron has performed locally and internationally with the Voices of Aloha, participating in tours to the Philippines (2014), Montreal to New York (2016), and Spain (2018). Outside of music, Aaron is also an active volleyball coach, working with young athletes ages 8 to 18 in various capacities.

Rina Robin

Secretary

Ms. Rina Robin is the general music teacher at Kaleiʻopuʻu Elementary School and serves as the Secretary for the Hawaiʻi Chapter of the American Choral Directors Association. She earned her BEd in Music Education from the University of Hawaiʻi at Mānoa and is certified in Orff-Schulwerk Level I.

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As an elementary music educator, Rina is passionate about creating a positive environment where her students can develop confidence, creativity, and meaningful musical skills. She is especially interested in elementary choral music education and is excited to provide opportunities to young singers in her community.

Michael Lippert

Treasurer

Mr. Michael Lippert has served ACDA chapters for over 25 years in New York and Hawaiʻi in many capacities, including state regional representative, Hawaiʻi state president, webmaster, R&R chair for High School Choirs and festival coordinator.

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He is a music educator at Punahou School, teaching choir, guitar, and creative music classes, serving as the K-12 Chair (Academy) for the Music Department. He holds a B.M.E. and M.M. in Conducting from Ithaca College with additional studies at the Marta Sanchez Dalcroze Training Center, Kodály Institute of the Liszt Ferenc Academy of Music, and CircleSongs with Bobby McFerrin, in addition to degrees in Creative Writing and Social and Decision Sciences from Carnegie Mellon University.

Wanda Gereben

Associate Treasurer

Ms. Wanda Gereben has been a choral director and in the field of music education in Hawaiʻi for fifty plus years. A life member of the national American Choral Directors Association, she co-founded the Hawaiʻi Chapter of ACDA in 1975. She served twice as the President of the Hawaiʻi Chapter and is presently on the Executive Board, serving as Treasurer since 2007. She also served as the regional chairperson of the National Standing Committee on Children’s Choruses for ACDA and remains a life member of the Hawaiʻi Music Educators Association.

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Her many accomplishments and contributions to the performing arts community include:

Chairman of the Music Department of St. Andrew’s Priory School for 25 years. She developed and supervised a K–12 music curriculum that included choral, band, orchestra, and general music. In 1985, as an administrator, Wanda created the Queen Emma Center as the community service non-profit arm for the school. This included the development of the music and dance schools, early morning family breakfast program, after school care, and co-ed summer school. She led the school’s purchase of the Queen Emma Preschool and Camp Timberline.

Church musician in Hawaiʻi for 30 years. Wanda served as choir director at St. Timothy’s Episcopal Church in ʻAiea, St. Peter’s Episcopal Church in Honolulu, and St. Christopher’s Episcopal Church in Kailua.

Founder and Artistic Director of the Hawaiʻi Children’s Chorus. In 1979 she produced two commercially successful recording albums with Hawaiian artists Leon & Malia. From 1980–1985, she served as the Artistic Director of the Honolulu Chorale and produced a Christmas recording album in collaboration with Honolulu soprano Mary Ann Bailey.

Founder and Executive Director of the Pacific Rim Children’s Chorus Festival. Produced annually in Honolulu from 2001–2010, this event brought 300+ young singers to Hawaiʻi each year to learn and experience the choral music and cultural traditions of countries around the Pacific Rim.

Owner of Group Travel Services Hawaiʻi, LTD until 2012. The company specialized in serving performing music groups traveling to Hawaiʻi.

Patron of the performing arts in Hawaiʻi. Wanda has served on the Advisory Boards of the Hawaiʻi Youth Opera Chorus and the Oʻahu Choral Society. She was also a member of the Board of Trustees for the National Youth Choir of Great Britain.

Published choral arrangements with Hal Leonard Music Publications. She devotes much of her time and energy to expanding awareness and knowledge of the different choral music traditions throughout the Pacific region.

Personal interests include teaching morning water aerobics classes at the Nuʻuanu YMCA, international travel, and real estate investment.

Collin Boothby

Membership Chair

Dr. Collin Boothby is committed to creating meaningful musical experiences with students, colleagues, and for audiences alike. In 2024, Collin accepted the Director of Choral Activities position at Hawaii Pacific University in Honolulu, Hawaii. Previous roles include teaching at the University of Southern California and Brazosport College, the Assistant Organist/Choral Director at All Saints’ Episcopal Church in Beverly Hills, CA, and the Organist/Choirmaster position at Trinity Episcopal Church in Houston, TX. Since 2018, he has led a professional choir for High Holy Days at Congregation Beth Israel in Houston, TX.

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In May 2024, Collin graduated with a DMA in Sacred Music from University of Southern California and was named the outstanding graduate in his department. Collin presented research regarding the aging voice, hymn descants, and several recitals while fulfilling an academic concentration in Choral Music, and electives in Instrumental Conducting and Vocology. He earned an MM in Organ Performance from Rice University and graduated with a BM from Texas Christian University with distinction as an Honors Laureate. During high school, he completed an Associate degree from Olympic College.


Collin has been featured in performances at notable venues including Carnegie Hall, Canterbury Cathedral, and Washington National Cathedral among others. A partnership between Rice University and the Hochschule für Musik und Theater in Leipzig, Germany presented him the opportunity to perform and study on many significant historic instruments, including the 1746 Hildebrant organ in Naumburg, which was tested and played by J.S. Bach. As a collaborative artist, Collin has appeared with the New England Symphonic Ensemble, Shepherd School Symphony Orchestra, Ken Davis Chorale, TCU Wind Symphony, Fort Worth Choral Society, and the Brazosport College Chamber Singers and Civic Chorus. As a conductor, Collin has led performances with the USC Chamber Singers, USC Concert Chorale, USC University Chorus, and the Los Angeles Doctors Symphony Orchestra.
In addition to his musical pursuits, Collin is active in several professional organizations including the American Guild of Organists (AGO), American Choral Directors Association, and the Association of Anglican Musicians. Currently, Collin sits on the National Council of the AGO as the Councillor for Conventions. He previously volunteered for the AGO on the Committee for Conventions, the Concert Committee of the Houston Chapter, and as Publicity Chair for the 2015 Regional Convention in Fort Worth.

Collin looks forward to exploring Hawaii with his fianceé Jessica, and their adorable dog, Finn. Their past adventures have included exploring New Zealand, Europe, and much of the U.S. They enjoy traveling, hiking, swimming, and spending time with friends and family and are excited to make Hawaii their new home.