Progressive Rock - Rock Legends

By the dawn of the seventies, progressive rock freed bands of the limitations of four-minute songs, allowing musicians to evolve a single track over a whole side of vinyl, draw on classical sources and create music in more complex, time signatures. Moog Synthesizers were portable and affordable, allowing bands to create orchestral effects. Such devices added a spectrum of new sounds and possibilities for musicians. This new world brought artists such as Rush, Yes & Atomic Rooster into the mainstream.