Zu is an experimental band from Italy, formed in Rome in the late 1990s, known for blending elements of avant-garde rock, jazz, noise and metal into a distinctive, high-energy sound. Their instrumentation typically centers on saxophone, bass and drums, with frequent use of distortion, extended techniques and improvisation; collaborations with guest guitarists and vocalists have also been a recurring feature. Zu's music is characterized by driving, rhythmically intense compositions, abrupt dynamics, and a fusion of composed structures with free-playing and noise textures, positioning them within the broader improvised and experimental music scenes rather than mainstream genres. They have been active across several decades, releasing albums and performing internationally.