Semenov was scientific director of the
Glinka Museum of Musical Culture in Moscow, art director of the
Odessa Philharmonic Orchestra and other institutions. He is now Secretary General of the Odessa branch of the Ukrainian Union of Composers, member of the board of directors of the Ukrainian branch of the
International Society for
Contemporary Music, director of international festivals programming in Ukraine, chief editor of the CD-Rom
New Music in Ukraine,
and editor of the
Dictionary of Contemporary Ukrainian Composers (under publication). He is also director of the Music Information Center of Odessa – Ukraine, as well as the editor of a large number of musicological editions. He has written over one hundred articles published in Ukraine and abroad. He speaks ten languages. He has won a
DAAD scholarship, and in 2002 a scholarship of the
Alexandros Onassis Foundation. Iouri Semenov is a member of the
Advisory Board of
Musicology
(
Musicología).