Our Instructors


Barry Felder

Founder | Music Instructor | Academic Instructor


Barry Felder has been an active performer and teacher in the Washington, D.C. area for the past 25 years. He founded Cornerstone Music, Art & Learning in 2010. His goal is to ignite a passion for lifelong learning in the students, and empower them to teach themselves anything they want.

In Barry's studio, students can be heard playing everything from Bach, Beethoven, Rachmaninoff and Chopin, to Psy, LMFAO, Super Mario, and Bollywood. His personal approach to teaching music emphasizes a thorough grounding in the fundamentals along with a healthy dose of fun and a little craziness!

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Sarah Sweetman,

M.Ed., Ph.D.

Director of Education

Academic Instructor

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Derek Sweetman

M.S., Ph.D. 

Academic Instructor


Chris Liu

Art Program Director


Rachel Wiseman

Art Instructor


Naomi Kitazawa

Art Instructor


Julia Yin

Art Instructor