O'BRIEN, RICHARD O'Brien, Tim O'CALLANAIN, NIALL O'Carolan, Turlough O'Connor, Ella Yelich O'Farrill, Chico O'Gorman, Peter O'Hara, Geoffrey O'Hara, Michael O'Leary, Jessica (editor) O'Neal, Barry O'Neill, Francis O'Neill, Jackie O'Neill, Susan O'Regan, Tarik O'Reilly, John O'Reilly, Kim Oakland, Ben Oare, Michael OASIS Oberholzer, Verena Oberst, Fritz Obijalska, Dorota Obradors, Fernando Obrecht, Jacob Obrovska, Jana Obst, Michael Ocampo, Mauricio Cardozo OCEAN COLOUR SCENE Ochs, Rudolf Ochs, Siegfried Ockeghem, Johannes Ockelford, Adam Oddone, Edoardo Odeh-Tamini, Samir Odell, Tom Oden, Annette Odo, Franklin Odone, Alberto Oerding, Johannes Oermann, Nils Ole Offenbach, Jacques Ogiński, Michał Kleofas Ohse, Reinhard Okoshi, Tiger Olah, Tiberiu OLATUNJI, BABATUNDE Oldenkamp, Michiel Oldroyd, George Olivadoti, Joseph Oliver, Joseph King Oliver, Nancy Oliver, Sy Olivero, Betty Olivieri Sangiacomo, Elisa Olson, Lynn Freeman Olsson, Milton Omar, Don Omartian, Michael Ondrasik, John Ondrícek, František Ondruš, Ján One Republic Ongarello, Antonio Onovwerosuoke, Fred Ónozó János Onslow Oppo, Franco Oram, James Orbán György Orban, Marcel Orbison, Roy Orefice, Giacomo Orefici, Alberto Orff, Carl Orkisz, Andrzej Orloff-Tschekorsky, Tatjana Orologio, Alessandro Oromszegi Ottó Orr, Buxton Orr, J. Orsi, Romeo Országh Tivadar Ort, Jirí Ortelli, Antonio Ortiz, Diego Ortiz-Alvarado, Graciela Paraskevaídis William Orton, Beth Osborn, Brad OSBORNE Osborne, Anthony Osborne, Tony (arranger) OSBOURN, LESLIE Osbourne, Ozzy Osentowski, Francis Osorio, Nuno Ospald, Klaus Osse, Klaus Ostendorf, Jens-Peter Osterling, Eric Ostrzyga, Michael Oswald, Albert Oswald, Gerald Ott Rezső Ott, Daniel Ott, Eugen Ott, Karin Otterstedt, Annette Ovadia, Moni Ovcharenko, Halyna Overduin, Jan Owen, Barbara Owen, Teodora Owenby, Chris Owens, James T. Owens, Jessie Ann Owens, Jimmy Owens, Matthew Owsinsky, Bobby Oxa, Anna Ozi, Etienne Ozim, Igor (Hrsg.) O'Loughlin, Sean (instrumentation by) O'Neill, Jackie (arranged by) O'Regan, Noel (edited by) Oberbek, Jan (edited by) Obst, Michael (edited by) Obst, Michael (arranged by) Obst, Michael (KA) (arranged by) Ocean, Johny (instrumentation by) Ocker, Marshall (instrumentation by) Oddo, John (instrumentation by) Odermatt, Arnold (edited by) Oechsle, Siegfried (edited by) Oerding, Johannes (words by) Oeser, Fritz (translated by) Oeser, Fritz (edited by) Oeser, Fritz (words by) Oeser, Fritz (transcribed by) Oesterle, Louis (edited by) Ofburg (instrumentation by) Ogonovsky, Margaret (arranged by) Ohanian, David (arranged by) Ohmen, Wilhelm (edited by) Ohmiya, Makoto (edited by) Oistrach, Igor (piano score by) OLATUNJI, BABATUNDE (author) Oldenkamp, Michiel (edited by) Oldman, Cecil B. (edited by) Oleskiewicz, Mary (edited by) Oliva, Petr (edited by) Olson, Lynn Freeman (edited by) Olson, Lynn Freeman (arranged by) Ondrícek, František (transcribed by) Ongarello, Antonio (arranged by) Ongarello, Antonio (transcribed by) Ónozó János (edited by) Opp, Walter (edited by) Oppermann, Annette (edited by) Orbán György (composer-contributor) Orbán György (edited by) Orbán György (arranged by) Orbán György (transcribed by) Orbán György (edited by) Orbán György (piano score by) Orbán Ottó (translated by) Orbaugh, William (arranged by) Orel, Alfred (words by) Orel, Alfred (edited by) Orenstein, Arbie (edited by) Orford, John (editor) (edited by) Orgelbuchkommission Baden, Elsaß, Lothringen und Pfalz (edited by) Ormay Imre (words by) Ormay Imre (translated by) Oromszegi Ottó (edited by) Orphee, Matanya (edited by) Országh Tivadar (transcribed by) Országh Tivadar (transcribed for violin and piano) Országh Tivadar (compiled by) Ortega, J. (transcribed and edited by) Ortega, J. (edited by) Ortiz, Juan (instrumentation by) Osborne, Tony (arranger) (edited by) Ostendorf, Jens-Peter (edited by) Osterling, Eric (instrumentation by) Osterling, Eric (transcribed by) Osthoff, Helmuth (edited by) Osthoff, Wolfgang (edited by) Osvát Erzsébet (words by) Oswald, Gerald (instrumentation by) Ötsch, Barbara (edited by) Ott Rezső (piano score by) Otterstedt, Annette (edited by) Oud, Thijs (instrumentation by) Over, Bertold (edited by) Owen, Don (instrumentation by) Owsinsky, Bobby (author) Ozim, Igor (edited by)