The Directors


Instrumental Music Director - Mr. Andy Magana

Andy Magana has been teaching high school instrumental music for 32 years and has been at Tesoro High School for the past fourteen years. He received his Bachelor of Music degree at California State University, Long Beach and earned his Master of Music degree in Conducting at the American Band College of Southern Oregon University.


Andy started his teaching career at Mountain View High School in the El Monte Union High School District in 1986. He then taught at San Clemente High School for 11 years, where he was selected as Teacher of the Year in 1997. He has also taught 6th and 7th Grade Band at Las Flores and Arroyo Vista Intermediate Schools. 

Throughout his career, his ensembles have consistently earned top awards and superior ratings at tournaments and festivals. Tesoro High School has twice been recognized by the Grammy® Foundation as one of the top music programs in the nation and in 2015 was selected as a Grammy Signature school designating it as one of the top five in the country. 

Mr. Magana has performed with his students all over the United States including three performances at the International Band and Orchestra Festival at Carnegie Hall and once at Chicago Symphony Center. Andy has also toured and performed with his ensembles in Canada and Europe. 

The Orange County Music and Arts Administrators selected Andy as the Orange County Arts Educator of the Year for Instrumental Music in 2000. He was awarded SCSBOA’s Outstanding Veteran Teacher Award in 2014. 

Andy was selected to conduct the 2018 SCSBOA All Southern California Middle School Honor Symphonic Band. Andy has been an active member of the Southern California School Band and Orchestra Association and the California Band Directors Association and California Orchestra Directors Association. His service to SCSBOA includes; Vice President of Festivals, Middle Honor Band Conductor, High School Honor Band and All Star Jazz Honor Band Manager, Middle School and High School honor group audition panelist, conference clinician, and festival and field show adjudicator 

Instrumental Music Director - Ms. Yeon Choi

Yeon Choi received her Bachelors of Arts in Music from the University of California, Irvine and her California Teaching Credential from California State University, Fullerton.  

Ms. Choi has taught at all scholastic levels, including elementary, middle school and high school.  She most recently was the director of orchestras at Niguel Hills Middle School. Over her eight years at Niguel Hills Middle School, her groups were known both on a local and regional level for their attention to detail as well as the quality of their performances, where they consistently earned superior and unanimous superior ratings at festivals.  

Ms. Choi is the 2014 Capistrano Unified School District Teacher of the Year. 

Ms. Choi has professional affiliations with the California Orchestra Directors Association, American String Teachers Association and the Southern California School Band and Orchestra Association (SCSBOA).  She has served on the Board of Directors three time for the SCSBOA and is the current Vice President of Middle School Honor Groups.  Ms. Choir previously held the offices of Elementary and Middle School Education and String Education. 

Ms. Choi’s believes music education provides an opportunity for students to develop an appreciation for music and encourages the skills and discipline necessary for achieving musical success throughout a lifetime of experiences.  Students learn the importance of a cooperative team effort while working with fellow members to accomplish the shared goals