Harmonyx

Saxophone Quartet

Harmonyx is a dynamic saxophone quartet based in San Diego, delivering unforgettable live music performances as part of the city’s vibrant performing arts scene. Comprised of four accomplished musicians—Robert Castro (soprano), Nick Muellner (alto), Iisak Niemela (tenor), and Aaron Mulder (baritone)—Harmonyx blends classical precision, emotional expression, and diverse musical influences. As proud members of the Finest City Musician Alliance, they showcase the beauty and versatility of the saxophone through genre-spanning concerts that captivate audiences at San Diego performing arts events, festivals, and community concerts.