Meet the Teachers

Our Teachers are specially selected for their musical and communication skills, and their love for working with children. All with strong backgrounds in Music combined with years of experience in teaching, our teachers will inspire and motivate your children. 

All of our Yamaha Music Education System teachers are certified YMES instructors. Our YMES instructors undertake intensive training programs, and their work is regularly monitored. They receive ongoing YMES training and support.



Hsiaowen Shih

Ms. Hsiaowen was born in Tainan, Taiwan. She began taking music lessons at the age of four with the Yamaha JMC program. She continued to pursue her love for music and got her Bachelor of Science in Music Education at Cal Poly Pomona, Masters of Music in Guitar Performance at Cal State Fullerton, with David Grimes, and Music Business Certificate at UCLA.

Since receiving her degrees, she has been teaching guitar, piano and music theory at local music schools for more than ten years. As a guitarist, she has been performing solo since high school. And as a member of the Orange County Guitar Orchestra since 2011.

Ms. Hsiaowen now teaches JMC, YMC group classes, piano, and guitar.


Maria Del Pilar

Maria Del Pilar, completed her Bachelor of Music in Vocal Performance from Conservatory of Antioquia University of Colombia, and a Master of Music in Vocal Performance from Azusa Pacific University.  Maria is an active performer. She has given solo recitals throughout Colombia and in Southern California. Ms. Gomez is a founding member of the Musica Anima and Opus 2 ensembles.

She’s an active member of Tuesday Musicale in Pasadena and Music Teachers Association of California.  She also has an extensive experience as a vocal instructor. She started teaching voice for singers and actors at the Conservatory of Antioquia University, Cali, Pasto and Pereira (Colombia). When she moved to California, Pilar started teaching voice at Music Maker School in Anaheim Hills.  Currently, she expands her teaching experience with Yamaha Music School, with Musika Lessons and at her Private 


 Mariana Sargsyan

Mariana received her BM in Yerevan State Conservatory of Komitas and is currently studying for her Masters of Music in Piano Pedagogy in California State University of Northridge.  She has been teaching piano during her college years and is currently teaching private piano.


Jesus Manuel Toro

Jesus came from Caracas, Venezuela.  He finished his Artist Certificate of College of Charleston, SC.  Jesus has played recitals throughout Venezuela, as well as the young Artist Series of Piccolo Spoleto (USA), the Aspen Music Festival and School (USA) and Perugia Music Fest in Italy where he played as a soloist with “I Solisti Di Perugia” orchestra. 

Also, he has been engaged to perform with serval professional orchestras in Venezuela, such as Municipal Symphony Orchestra of Caracas, the Venezuelan Philharmonic and the Solistas de Venezuela Orchestra. Jesus also obtain his Law degree at Santa Maria University in Venezuela.  Recently, he won fourth prize in the V category of the Liszt International Competition in L.A. Currently Jesus Manuel is studying the Artist Certificate Program in Azusa Pacific University. 



Meggie Yen

Ms.  Yen received her Bachelor of Arts in Music from Tainan University of Technology in Taiwan.  Yen is a renowned music instructor of Yamaha Music Education System in Taiwan since 1989. She currently teaches JMC, JXC, and YMC group lessons. 


Anne Bader

 Ms. Bader received her Masters of Arts in Music Teaching, at the St. Petersburg Conservatory in Russia. She also received the qualifications of Concert Performer, Chamber Ensemble Artist and teaching.

Ms. Bader was trained by International acclaimed teachers such as Vladimir Nilsen, Igor Komazov, notable Professor Leonid Gakkel, and many other famous teachers. Ms. Bader has taught at the world renowned Tchaikovsky Special School of Music for Gifted Children in Yerivan, Armenia and private piano lesson for over 30 years.


Tomomi Kojima

Ms. Tomomi Kojima began learning the piano at the age of three under the Suzuki Method.  She received a bachelor’s degree majoring in Piano from Senzoku Gakuen College of Music in Japan.  She completed the Warsaw Piano Workshop at the Frederic Chopin State School of Music in Poland and was awarded scholarships.  

She has also participated in the Lyon International Summer Music Academy in France. She is currently pursuing the Artist Certificate in Piano Performance at Azusa Pacific University with the tuition scholarship selected by the Dean.

Eric Wang

Eric Wang (Chun Yi Wang)

Mr. Wang received his D.M.A from the Baku National Academy of Music, and a M.M from Julliard School in New York. He earned his Pianist Diploma at the Conservatorio Nazionale Di in Bologna Italy. He has also has studied extensively at the Ecole Normale de Musique in Paris France.

He's the founder and President of the Los Angeles International Performing Arts Institute. Mr. Wang has been a C.M Evaluator since 1966. He is a judge for the Bach Festivals and SYMF Competitions. Currently he teaches private piano lessons for Yamaha For Music.



Ai-Hwa Kung

Ms. Kung received her B.A. in Piano Performances from CSULA. Several of her students are winners of the S.C.J. Bach Festival, S.Y.M.F, Chinese and MTAC Branch Honors, and Convention Festival. Ms. Kung teachers JMC, YMC, JXC and private piano lesson. She is also a Yamaha Grade Examiner.


 About Us

The Diamond Bar Yamaha Music School began providing effective music education to children of all ages in 1982. The school was founded by, and is currently owned and operated, by Esther Kho.

Our second school, Walnut Yamaha School of Music, was opened in 1995.

We firmly believe in the effectiveness of the Yamaha Music Education System for young beginners. These courses will not only teach your child the fundamentals of the keyboard and musicianship through singing, note reading, ear training, and keyboard playing but also help build self-esteem and increase self-confidence while fostering an understanding and love for music. We highly recommend children under 8 years old to attend Group Lessons to get a strong foundation before taking any private instrument.

Our mission is to instill in our students a deep enjoyment and appreciation of music by providing an innovative, effective, and fun music learning environment so that they may look beyond the routine practice and allow music to be a natural, constant part of their lives.

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