Yanagisawa (柳澤管楽器株式会社) is a high-end Japanese manufacturer of musical instruments, recognized worldwide as one of the absolute leaders in saxophone making. Founded in 1894, the brand stands out for its exclusively handcrafted production, uniquely focused on the saxophone family (from sopranino to baritone). Together with Yamaha, it represents the quintessence of Japanese instrument-making expertise and precision.

In 2024, Yanagisawa chose the Ellipsos Quartet as its Global Ambassador and became a full partner in the quartet’s activities.

The Ellipsos Quartet plays the Silver Sonic WO models (S-WO37GP / A-WO37GP / T-WO37GP / B-WO30BSB).