Michal Rataj (born 1975) is composer, performer and sound designer based in Prague, Czech Republic. He composes mainly electroacoustic and chamber or orchestral instrumental music and receives performances throughout Europe, the USA and broadcasts worldwide. Recently he has been active as real-time performer of his acousmatic music and he gives sound performances alone or with different music partners. Rataj is professor of composition at the Department of Composition, Academy of Performing Arts in Prague. He studied musicology (Charles University, Prague) and composition (Academy of Performing Arts, Prague) with prof. Ivan Kurz and prof. Milan Slavický. He also went to study in Egham (UK) and Berlin (D) and as a Fulbright Scholar he conducted research in Center For New Music And Audio Technologies at University of California, Berkeley, CA in the academic year 2007 – 2008. He worked as a sound designer and radio producer at the Czech Radio between 1996 - 2013, where he has produced over 150 original radioart works with artists from around the world. He also formed rAdioCUSTICA radioart archive there. He was a member of the EBU Ars Acustica Group, his music has been broadcast worldwide and performed throughout Europe and in the USA. Since the year 1995 he has composed 50+ soundtracks for TV and cinema since 2000 and large number of radio plays.