Our Approach

Goals of the Sonora High School Instrumental Music Program

The Sonora High School Instrumental Music Program is dedicated to

*providing high quality instruction in order to promote a strong music foundation for its students,
*strengthening social and life skills of its members,
*improving individual performance and ensemble skills of members,
*creating a sense of family among members,
*building a lifelong love of learning and making music,
*producing a safe and positive learning environment for each student,
*developing strong leaders and productive members of tomorrow’s society.

Music Students will:

*strengthen musically, socially, and civically,
*increase their critical thinking and aesthetic awareness,
*demonstrate character, personal integrity, respect, and self-discipline,
*uphold an exemplary image on and off the field and stage.

Our Story

Sonora High School is very active in the music community. The music department includes the Raider Regiment Marching Band, Winter Guard, Winter Percussion Ensemble, and more!

The Sonora High School Band is a 501(c)3 Non-profit Organization. TAX EIN: 33-0739545

Meet the Staff

The Sonora High School music department is comprised of dedicated teachers and staff members.

Jerome Diebolt

Music Director

Mr. Diebolt graduated from Rancho Bernardo High School in San Diego before attending Cal State Fullerton. He graduated from CSUF Cum Laude with a Bachelors of Arts in Music Education in 2001. He received his teaching credential the next year while student teaching at El Dorado High School and Tuffree Middle School in the Placentia-Yorba Linda School District, and completed his Master’s Degree with the American Band College at Southern Oregon University in 2007.

Mr. Diebolt took the job as Sonora’s Instrumental Music Director in 2002. His ensembles have garnered many first place awards (San Dimas Western Days Parade, Chino Band Review and Field Tournament, Kennedy Field Show, Fullerton Festival of Bands, and the La Palma Days Parade) and Superior ratings. Members of his groups have performed in London, Paris, Austria, Germany, Switzerland, the Tournament of Roses Parade and All-Southern and All-State Honor Bands and Orchestras. He was selected as Sonora’s Teacher of the Year in 2007.

Graduates of his program have gone on to play at many fine institutions including University of Southern California, Biola, UC Irvine, University of Oregon, Fullerton College, Mt. San Antonio College, Wheaton, Washington State, and Roosevelt University to name a few.

Mr. Diebolt has served as an Honor Band Manager, Honor Band Auditioner, and Judge with the Southern California School Band and Orchestra Association.

Mr. Diebolt lives in Brea with his wife Rebecca, his daughters Taylor and Aubrey, his son Nathan, and his dog Zeppelin.

Past Band Directors:

Ray Rust: 2001 – 2002
Mike Pergola: 1993 – 2001
Mark Taber: 1990 – 1993
Rae Boeving: 1982 – 1990
Nick Papageorge: 1976 – 1982
Lynn Branson: 1975-1976
Larry Triplett: 1972 – 1975
Jack Watkins: 1966 – 1972

Rachel Yoo

Colorguard Director

Rachel Yoo has been involved in the world of Colorguard since 2003. Starting in the Fall of 2003, she was part of the Garden Grove High School Colorguard. Some of her achievements during that time included leadership during the 2005-2006 seasons, earning a gold medal with her team in the Winterguard season of 2005, and earning a college scholarship through the Winterguard Association of Southern California for excellence in academics and Winterguard performance in 2007. After high school, Rachel became a founding member of Incognito Winterguard, from 2008 to 2010. She also participated as a member of the Incognito Drum and Bugle Corps for the summer of 2009.  She was a founding member of the Winterguard team: Enora, which had its opening season in spring of 2011.

One of Rachel’s favorite parts of Colorguard is the opportunity to work with many different students from all over. Rachel has taught guard for over 10 years at various schools and previously with Incognito DBC. Her current schools are Sonora High School, Fullerton Union High School, Brea Olinda High School, and Brea Junior High.  

Besides colorguard, Rachel received her M.A. in Cultural Anthropology from Biola University in 2013. She also has her B.A. in Anthropology with minors in Biblical Studies and Archaeology from 2010. She is currently working toward her Single-Subject Social Studies Teaching Credential and M.A. in Education at Hope International University. Rachel lives with her wonderful husband Matt in Brea, CA.

Tony T Nguyen

Percussion Director

Tony T Nguyen has been mentoring the youth since 1999 as he started teaching the percussion ensemble at Garden Grove High School where he graduated from.

Since then, he has held the following positions:
+ Percussion Caption
+ Brass Caption
+ Visual Caption
+ Drill Designer
+ Music Composer/Arranger

Tony T Nguyen has designed and helped earned sweepstakes awards with the following circuits:
+ WBA
+ SCSBOA
+ MBOS
+ CSBC
+ WGI
+ SCPA
+ ADLA
+ DCI

Current and past schools:
+ Sonora HS
+ Mt. Carmel HS
+ Brea Olinda HS
+ San Marino HS
+ South Pasadena HS
+ Edison HS
+ Ramona HS
+ Huntington Beach HS
+ Garden Grove HS
+ La Quinta HS
+ Fullerton Union HS
+ Baldwin Park HS
+ Costa Mesa Middle School

Tony T Nguyen is also the founder of Incognito Percussion, Incognito Drum and Bugle Corps.

Currently Tony T is signed with Warner Bros with music placements on the way to popular TV shows and series.

Rodolfo Lizardo

Rudy Lizardo began his marching career in 2013 at Sonora HS. Throughout high school he performed with the Drumline in the Raider Regiment, as well as Winterline and various other ensembles Sonora offered. Since high school, Rudy has performed in local SoCal independent marching ensembles such as Incognito Drum and Bugle Corp (2015-2016), Elan Percussion (2017-2019), Watchmen Drum and Bugle Corp (2018). Synergy Percussion (2018-2019) and most recently the Pacific Crest Tournament of Roses Ensemble for the 2019 New Year. It is Rudy’s 3rd year being battery instructor at his alma mater as of 2020 and is excited for the upcoming season. Rudy on his free time likes to enjoy meals with his friends and play tenor drums as well as eat Pho with Phillip.

Phillip Lim

Phillip Lim began his music career in 2011 at Imperial Middle School on Trumpet under the direction of Ken Hollon. He later went to Sonora High School and continued his marching/music career with the Raider Regiment, Sonora Jazz band, and Concert Band. During High School and after he participated in many outside ensembles such as Incognito Drum and Bugle Corps (2016), Watchmen Drum and Bugle Corps (2018), Gold Drum and Bugle Corps (2019), Chapman University and Mt. SAC Honor Bands, and the Southern California Ambassadors of Music Band. This is Phillip’s 1st full year being high brass instructor teaching for half a year 2017 and returning for the 2019-2020 season. Phillip is currently leading the jazz band spring of 2020 and he is very grateful for the opportunity to teach by Mr. Diebolt. Phillip is currently studying at Fullerton College as a Business major and is minoring in music education. In his free time he likes to hang out with his friends and family, as well as traveling, and eating Pho with Rudy. 

Ryan Choe

Ryan started his music career under his first piano teacher in 2005. He performed for Carden Whittier’s talent show as well as choir, bell choir, and his graduation ceremony. In 2007, He moved on to his most recent instructor, Joo-Hee Kim, to continue his education in piano until 2017, taking part in the Certificate of Merit until passing advanced. Ryan began his marching career in 2013 with Sonora High Band under the direction of Jerome Diebolt, playing mallets for fall, winter and drumline. Outside of high school, he performed for Incognito Drum and Bugle corps (2016) (2018) Incognito Indoor (2019) (2020) and Synergy (2018) (2019). As of 2020, this is Ryan’s 3rd year instructing Pit and looks forward to educate generations to come. In his free time, Ryan enjoys movies, time with friends and driving to new places.