Some of Yugoslavia’s most radical musical manifestations unfolded during the 1970s and 1980s. Aided by postwar Yugoslav cultural programs, the iconic Student Cultural Center (SKC) in Belgrade – a student-managed “safe space” for free expression and creativity – opened its doors in 1971 and instantly became a magnet for experimental musicians throughout the Western and Eastern Blocs. A group of rebellious composers and performers – Opus 4 and the Ensemble for Different New Music made some of the largest strides in Yugoslav music history and defined a new era of avant-garde and a unique brand of minimalism, influenced by performance and conceptual art, Cage-style experimentalism, Fluxus, and the use of multimedia. This study briefly illustrates their robust vision that connected the East with the West in a fruitful exchange of ideas, despite the geo-political division of the world at the time.