O'Connell, Kevin
(1958- ), Derry, Ireland. Picture, biography, and selected works, from the Contemporary Music Centre, Ireland.
O'Farrell, Anne Marie
(1966- ), Dublin, Ireland. Picture, biography, and selected works, from the Contemporary Music Centre, Ireland.
O'Leary, Jane
(1946- ), Hartford, Connecticut. Picture, biography, and selected works, from the Contemporary Music Centre, Ireland.
O'Leary, Martin
(1963- ), Dublin, Ireland. Picture, biography, and selected works, from the Contemporary Music Centre, Ireland.
O'Neill, Nicholas
(1970- ), Cheltenham, England. Picture, biography, selected works, and sound file, from the British Composers World Wide Web Project.
O'Quinn, David
Compositions with scores and sound using Sibelius Music, and links.
Obrovska, Jana
(1930- ), Prague, Czech Republic. Biography and selected works, from the Czech Music Information Project.
Obst, Michael
(1955- ), Frankfort, Germany. Biography and discussion of 'Kristallwelt I,' from the Gaudeamus Foundation.
Ocana, Anthony
(1980- ), Santiago, Dominican Republic. Pictures, biography, news, and sound files.
Ocker, David
(1951- ) Picture, biography, about the music, list of works, and about 'Pynchon,' from Leissure Music Planet.
Odstrcil, Karel
(1930- ), Valaske Mezirici, Czech Republic. Biography and selected works from the Czech Music Information Project.
Oehring, Helmut
(1961- ), Berlin, Germany. Biography from Boosey & Hawkes.
Oesterle, Michael
(1968- ), Ulm, Germany. Picture, biography, and works.
Ogdon, Will
Picture, biography, and works, from the American Music Center.
Oja, Esko
(1973- ), Tallinn, Estonia. Picture, biography, and works, from edition49.
Olive, Vivienne
(1950- ), London, England. Picture, biography, and list of works and recordings, from the Australian Music Centre.
Oliver, Harold
(1942- ) Includes biographical sketch, a catalog of his compositions, scores and sound files, and a brief essay.
Oliver, John
(1959- ), Vancouver, British Columbia. Picture, biography, selected works, and CDs, from the Canadian Music Centre.
Olivero, Betty
Catalog, discography, events, reviews, notes about compositions, and music samples.
Olivero, Betty
(1954- ), Tel Aviv, Israel. Picture, biography, selected works, and CDs, from the Israel Music Institute.
Olofsson, Kent
http://www.mic.stim.se/avd/mic/prod/personer.nsf/a7137b1c99bbacbe4125656a00368f66/653f8e12f014bac541
(1962- ), Karlskrona, Sweden. Biography from the Swedish Music Information Center.
Olsen, Tim
(1961- ), St. Paul, Minnesota. Biography, works, and events, from Vischer Ferry Music Publishing Co.
Oosterbaan, André
(1947- ), Amsterdam, Holland. Biography and list of works and recordings, from the Australian Music Centre.
Oppedisano, Marco
(1971- ) Picture, biography, selected works with sound files and information, from Vox Novus.
Orenstein, Joyce E.
List of works from New York Women Composers.
Orgad, Ben-Zion
(1926- ), Gelsenkirchen, Germany. Picture and biography, from the Israel Music Institute.
Orgee, Andy
(1958- ) Picture, biography, compositions, performances, and audio files.
Orlovich, Matthew
(1970- ), Sydney, Australia. Picture, biography, compositions, recordings, performances, and press.
Ornstein, Leo
(1892-2002) Picture and biography, from Other Minds.
Orr, Robin
(1909- ), Brechin, England. Picture, biography, list of works, and performances.
Ortiz Alvarado, William
Picture, biography, list of works, recordings, and reviews.
Ortiz-Torres, Gabriela
(1964- ), Mexico City, Mexico. Biography and discussion of 'Huitzil' (1989), from the Gaudeamus Foundation.
Orton, Richard
(1940- ), Derby, England. Picture, biography, works, commissions, recordings, and news, from Unique Music.
Osborne, Nigel
(1948- ) Picture, biography, and catalog of works from the University of York Music Press.
Ostertag, Bob
(1957- ), Albuquerque, New Mexico. Biography, CDs, photographs, and reviews.
Ott, Daniel
(1960- ), Grub, Switzerland. Biography and discussion of 'Molto Sempicimente' (1988/89), from the Gaudeamus Foundation.
Ottzen, Susan
Composer, classical and jazz harpist, and teacher. Picture, biography, and sound files.
Ouellette, Antoine
(1960- ), Montréal, Québec. Picture, biography, list of works, and CDs, from the Canadian Music Centre.
Ovsepyan, Petros
(1966- ), Azerbaijan. Biography and discussion of 'Now the shadow of the pillar...,' from the Gaudeamus Foundation.
Owens, Terry Winter
Picture, biography, commissions and awards, performances, and list of works, from the American Music Center.