John Mario Di Costanzo
piano & vocal coach

“Throughout my decades as a performer, I have never stopped teaching students of all ages. I am a believer of making learning fun for the student, and helping them achieve their individual goals with music that they are passionate about. I have taught children and adults of all ages and levels, from beginning piano and voice, to professional opera singers polishing a role to debut at the Metropolitan Opera. I bring my students the tools to use in their everyday practice and in performance.

As the conductor for Jackie Evancho, I am also a specialist in the crossover style. And as a father of two (my son is 7 and my daughter is 9), I am highly sensitive to how important it is to make a child's beginning instruction fun, rewarding, and motivational. Apart from private teaching, I am also an active performer, I am veteran pianist, accompanist, conductor, and voice teacher with over 30 years of experience in private instruction in addition to the University setting. I bring years of performance experience to my students in addition to a solid technical foundation for a well-rounded learning experience.


A native of Rhode Island, I started teaching and performing in Providence. My studies took me to Michigan, and upon graduation I taught in Ohio at the Ottawa Hills Conservatory in addition to a private studio while working as the assistant conductor at Toledo Opera. Eight years later, I moved to NYC where I founded the Westbury Conservatory and spent over a decade conducting across the country, in a variety of genres, from Opera and Symphonic works to the Jackie Evancho Tour.  After 20 years in NYC, I now reside in Sunny Southern California where I am the Music Director of the Temecula Valley Symphony (formerly the Inland Valley Symphony) of Temecula and Murrieta!”

Visit John Mario’s website for more information about his lessons at


Studio teaching day: Friday

Phone: 760.593.3215

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