O BRIEN, RICHARD O'BRIEN, T O'CALLANAIN O'Carolan, Turlough O'Farrill, Chico O'GORMAN PETER O'Leary, Jessica (editor) O'Neill, Francis O'Neill, Jackie O'Neill, Susan O'Regan, Tarik O'Reilly, J & Kinyon, J O'Reilly, John Oakland / Drake arr. Shaw Oakland, Ben Oakland, Ben - Drake, Milton Oare, Michael OASIS Oberholzer, V Oberst, Fritz Obijalska, Dorota, and Wawruk, Marcin Obradors, Fernando Obrecht, Jacob Obrovska, Jana Obst, Michael OCEAN COLOUR SCENE Ochs, R Ochs, Siegfried Ockeghem, Johannes Oddone, Edoardo Odeh-Tamini, Samir Odell, Tom Oerding, Johannes / Ramond, Frank / Müller, Ina Offenbach, Jacques Ogiński, Michał Kleofas Ohse, Reinhard Okoshi, Tiger & Lewis, Charles OLA GJEILO Olah, Tiberiu OLATUNJI, BABATUNDE Oldenkamp, Michiel Olivadoti, J. Oliver, Sy Olivero, Betty Olivieri Sangiacomo, Elisa Olson, Lynn Freeman Omar, Don Omartian, Michael Ondrícek, František Ondruš, Ján / Dikánová, Marcela One Republic Ongarello, Antonio Ónozó János Onslow Oppo, Franco Orbán György Orban, Marcel Orbison, Roy Orbison, Roy and Dees, Bill Orefice, Giacomo Orefici, Alberto Orff, Carl Orkisz, Andrzej Orloff-Tschekorsky, Tatjana Orologio, Alessandro Oromszegi Ottó Orr, Buxton Orsi, Romeo Országh Tivadar Ort, Jirí Ortelli, Antonio & Pigarelli, Luigi Ortiz, Diego Orton, Beth OSBORNE Osborne, Anthony Osborne, Tony (arranger) Osbourne, Ozzy Osbourne, Ozzy & Rhoads, Randy & Daisley, Bob Osbourne, Ozzy - Rhoads, Randy Osorio, Nuno Ospald, Klaus Osse, Klaus Ostendorf, Jens-Peter Osterling, Eric Ostrzyga, Michael Oswald, Albert Oswald, Gerald Ott Rezső Ott, Daniel Otterstedt, Annette Otto M. Schwarz Ovadia, Moni 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 (arranged by) Obst, Michael (edited by) Obst, Michael (KA) (arranged by) Ocean, Johny (instrumentation by) Ocker, Marshall (instrumentation by) Oddo, J. (instrumentation by) Odry Lehel (words by) Oechsle, Siegfried / Kirsch, Kathrin (edited by) Oechsle, Siegfried / Sponheuer, Bernd (edited by) Oechsle, Siegfried / Sponheuer, Bernd / Krummacher, Friedhelm (edited by) Oerding, Johannes / Ramond, Frank / Müller, Ina (words by) Oeser, Fritz (edited by) Oeser, Fritz (transcribed by) Oeser, Fritz (words by) Oeser, Fritz / Felsenstein, Walter (edited by) Oesterle, Louis (edited by) Ofburg (instrumentation by) Ogonovsky, Margaret (arranged by) Ohanian, David (arranged by) Ohmiya, Makoto / Gerlach, Sonja (edited by) Oistrach, D. (edited by) Oistrach, Igor (KA) (arranged by) Oldenkamp, Michiel (edited by) Oleskiewicz, Mary (edited by) Olson, Lynn Freeman (arranged by) Olson, Lynn Freeman (edited by) on Friedrich Hölderlin (words 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 (edited by) Orbán György (piano score by) Orbán György (arranged by) Orbán György (edited by) Orbán György (transcribed by) Orbán György (composer-contributor) Orbán Ottó (translated by) Orbaugh, William (arranged by) Orel, Alfred (edited by) Orenstein, Arbie (edited by) Orford, John (editor) (edited by) Orgelbuchkommission Baden, Elsaß, Lothringen und Pfalz (edited by) Ormay Ferenc (words by) Ormay Imre (translated by) Ormay Imre (words 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. (edited by) Ortega, J. (transcribed and 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 / Hallmark, Rufus (edited by) Osthoff, Wolfgang (edited by) Osvát Erzsébet (words by) Oswald, Gerald (instrumentation by) Ötsch, Barbara - Schneider, Martina (edited by) Ott Rezső (piano score by) Otterstedt, Annette (edited by) Oud, Thijs (instrumentation by) Over, Bertold (edited by) Owen, Don (instrumentation by) Ozim, Igor (edited by)