Operation Dinner Out Silvestro Sabatelli Cello, Horn, Flöte, Fagott, Bratsche, Oboe Bühne & Leinwand, Oper
Opus 59 - I spy classically John Trie Schlagzeug, Bassgitarre, Gitarre, Orgel, Klavier, Bass Folk Welt und Land, Bühne & Leinwand, Pop, Rock, Jazz
On The Sunny Side Of The Street Diego Monteiro, Frankie Laine, Dorothy Fields, Frank Sinatra, Dizzy Gillespie, Nat King Cole Klavier, Gitarre, Orgel, Elektronische Tastatur, Posaune, Trompete Jazz, Blues, Traditioneller Pop, Country, Bühne & Leinwand
Op.2 No.1 for string orchestra Stephen Lines Violine, Cello, Kontrabass, Bass, Bratsche Klassisch, Bühne & Leinwand, Folk Welt und Land
Opus #17 Dustin O'Halloran, Frankie Valli, Denny Randell, Sandy Linzer, John Trie, The Four Seasons Klavier, Gitarre Bühne & Leinwand, New Age, Pop Rock, Musical, Pop
Orange Coloured Sky Deke Sharon, Nat King Cole, Milton Delugg, Peggy Lee, Willie Stein Klavier, Altsaxophon, Gitarre Blues, Alternative, Bühne & Leinwand, Jazz, Traditioneller Pop
Organ Grinder's Swing Mitchell Parish, Irving Mills, Will Hudson Orgel, Klavier Swing, Bühne & Leinwand, Jazz
Ordinary Barenaked Ladies, Bart Hendrickson, Patrick Monahan, Train, Pat Monahan Gitarre, Klavier, E-Gitarre Alternative Pop/Rock, Erwachsene Alternative, Pop Rock, Bühne & Leinwand, Rock
I Exalt Thee / Open the Eyes of My Heart Mark Hayes, Larry Shackley, Deborah Brady, Ken Medema, Stephen DeCesare, Paul Baloche Gitarre, Klavier, Violine, Flöte, Cello, Ukulele Pop Rock, Evangelium, Bühne & Leinwand, Rock, Pop
Operation Ouch Dobs Vye, Jose Ignacio Huante Ceron, Jess Charles Klavier Kinder, Oper, Rock, Pop, Bühne & Leinwand
Orphan Girl / Travelin' Man Chris Miller Klavier, Gitarre Musical, Pop, Rock, Bühne & Leinwand, Traditioneller Pop
Oscail an Doras Bill Whelan, John Ivor Holland Klavier Folk Welt und Land, Broadway, Volksmusik, Musical, Bühne & Leinwand
One Track Mind Eric Clapton, Craig Carnelia, The Knickerbockers, Marvin Hamlisch, Keith Colley, Kevin Colley Klavier, Gitarre, E-Gitarre Blues Rock, Blues, Pop, Musical, Bühne & Leinwand
