Univers Zero is a Belgian band formed in 1973, known for its unique blend of progressive rock and avant-garde music. The group is characterized by its dark, atmospheric sound, often incorporating elements of classical music and jazz. Their compositions typically feature complex time signatures and a variety of instruments, including strings and woodwinds. The band's music is often associated with the Rock in Opposition movement, which promotes experimental and non-commercial music. Univers Zero has released several albums, with notable works like "Heresie" and "Uzed," showcasing their innovative approach to composition and sound. Their influence can be seen in the broader progressive rock genre.