William J Fritz: Piano, Organ & Composition
William Fritz is a composer, pianist, organist, liturgical musician and director of music at St. John the Baptist Parish in Costa Mesa, CA. His musical journey began when he lay under the piano while his older sisters practiced for their lessons. From there, he convinced his parents to start him on piano lessons, but not before he had composed his first piano piece.
In high school, he discovered the beauty of chant, attending the St. Michael's College Prep school, where he had the joy of listening to the canons chant the Mass and Compline every day.
He joined St. Michael's Abbey as a seminarian and for nine years dedicated himself to learning the life they lived. While there, he began organ training, and a rigorous, hands-on approach to Gregorian chant.
The approach William has to music has always been deeply molded by the spirit and technique of plainchant through the nine years he spent daily singing and studying with the Norbertine canons.
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This means that musicality and depth can be found in the simplest melodies and rhythms. It is important for the aspiring musician to learn to hear music, and not to take it for granted.
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William Fritz teaches in Central and North Orange County, as well as Chino Hills, California.
Heather Grumbine: Classical Violin and Irish Fiddle
“You are rarely too young and never too old to learn the violin”
-Shinichi Suzuki
Classical Violin​
Beginning as young as age 3, we can teach you the fundamentals of playing the violin. Using the Suzuki Method, the ability to play violin will be broken into small, attainable steps. Called the “Mother Tongue” method, we will use a combination of listening, singing, rhythm, and note reading, along with violin technique instruction to help you or your child begin the life long joy of making music on the violin.
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Traditional Irish Fiddle​
Learn to play lively & fun traditional jigs, reels, and hornpipes that have filled the homes & pubs of Ireland. These are the very same tunes that the people of Ireland, and those the world, over have danced to for centuries.
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Heather Grumbine teaches in the Pasadena, CA area of Los Angeles.
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Heather studied violin at the Cleveland Institute of Music and learned Traditional Irish Fiddle from old time musicians from County Sligo and Leitrim, Ireland. She has been playing, performing, and teaching both the Suzuki Methodology and Traditional Irish Music for over 25 years.
Sarah McGuire: Voice Coach
Sarah McGuire is a Los Angeles based actress and singer having spent her career performing at various regional theatres in Orange County. Her favorite venues she has performed at include the Tony-Award Winning South Coast Repertory, Costa Mesa Playhouse, and The Disneyland Resort. Sarah graduated from University of California, Irvine with her Bachelors in Musical Theatre and Educational Science.
Sarah is an alumna of the New York Satellite Program and South Coast Repertory's Acting Intensive Program. She has performed the Diocese of Orange as a soprano soloist, singing a range of secular and sacred repertoire at masses, funerals, and weddings.
When not onstage, Sarah is known for her coaching and instruction of young actors. Sarah is a musical theatre instructor at the Orange County School of the Arts and offers private vocal and acting coaching. As a vocal coach, Sarah specializes in developing confidence, audition preparation, and overall vocal health.
Anezka Johnston: Piano
Anezka Johnston is a dedicated piano teacher, performer, and church musician whose training and experience span both the U.S. and Europe. She completed the Certificate of Merit program at age 13, laying the foundation for her advanced musical studies. She later spent two years at the Prague Conservatory of Music, where she deepened her technique and artistry within the rich Central European classical tradition.
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An active performer, Anezka has appeared on renowned stages, including Carnegie Hall in 2019 and the Segerstrom Center for the Arts in 2018 and 2019. She also competed in MTAC competitions in 2018 and 2019, earning recognition for her expressive playing and musical discipline.
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In addition to teaching private piano students, Anezka serves the community through her work at St. John the Baptist Catholic Church, where she has been a cantor since 2016 and more recently, began playing the organ in 2024. Her teaching combines strong classical foundations with a supportive, patient approach, guiding students to develop confidence, technique, and a lifelong love of music.
