Ultra Sounds is the first study of the Polish Radio Experimental Studio (PRES), an early 'laboratory' for the production of electronic and electro-acoustic music, and the first of its kind in the Eastern Bloc. This well illustrated book features essays by leading musicologists and architectural, art and film historians, as well as interviews with engineers who worked in the Studio and transcripts of historic lectures and broadcasts by key figures in its history. It offers a comprehensive account of the Studio in the context of the revival of modernist experiment in post-Stalinist Poland in the 1960s.