Open My Heart James Quenton, Terry Lewis, James Harris III, Yolanda Adams Gitaar, Piano, Elektrische gitaar Evangelie, Folk, Pop
Operator Grateful Dead, Diana Krall, William Spivery, Ron McKernan, Jim Croce, The Manhattan Transfer Piano, Gitaar, Ukelele, Elektronisch keyboard, Orgel, Elektrische gitaar Adult Contemporary, Opera, Psychedelische Rock, Rock, Folk
Ophelia Sherry Lewis, Robbie Robertson, Jeremiah Fraites, Wesley Schultz, Jeremy Fraites, The Lumineers Drums, Viool, Ukelele, Piano, Gitaar, Altviool Alternatieve Pop/Rock, Podium & Scherm, Folk, Alternatief land, Folk Rock
Opportunity William Gluck, Jason Robert Brown, The Music, Juan Villodre, Yeah Yeah Yeahs, Charles Strouse Piano, Gitaar, Elektrische gitaar Broadway, Folk, Podium & Scherm, Kinderen, Pop
Out There Ryan Newell, Adam D J Taylor, Brian Strohmetz, Cy Coleman, Sister Hazel, Jim Dale Piano, Gitaar, Baritonhoorn, Bas, Euphonium, Bariton Podium & Scherm, Alternatief, Theater, Kinderen, Musical
Fantasy and Fugue on "Over the Rainbow", op. 5 Celtic Woman, Alan Jay Lerner, Audrey Snyder, Elise Ecklund, edward shanaphy, E.Y. Harburg Cello, Gitaar, Fluit, Hoorn, Piano, Altviool Jazz, Ballade, Broadway, Klassieke pop, Reggae
O Tannenbaum Jennifer Linn, FABRICIO GORRERA, Elvis Presley, Brent Edstrom, Cadenza Editions, Dave Brubeck Gitaar, Sopraan, Piano, Viool, Tuba, Orgel Blues, Boogie Woogie, Folk, Evangelie, Jazz
Our Generation Guy Farley, Tokio Myers, Craigie Dodds Piano Alternatief, Elektronisch, Folk, Pop, Indie R&B
Our God Saves J. Daniel Smith, Brenton Brown, Paul Baloche Viool, Piano, Fluit, Cello, Gitaar, Hoboï Hedendaagse christelijke, Evangelie, Podium & Scherm, Folk, Pop
Our Day Will Come Amy Winehouse, The Romantics, Jamie Cullum, Bob Hilliard, Mort Garson Piano, Gitaar, Elektrische gitaar Broadway, Reggae, Jazz, Pop, Folk
Our First Time Brian Wiggins, Ari Levine, Bruno Mars, Christopher Steven Brown, Dwayne Chin-Quee, Eric Hernandez Gitaar, Piano Funk / Soul, Kinderen, Hedendaagse R&B, Pop, Folk
Our Lips Are Sealed Jane Wiedlin, Terry Hall, The Go-Go's Piano, Gitaar, Elektrische gitaar Folk, New Wave, Rock, Podium & Scherm, Pop
Out Last Night Brett James, Kenny Chesney Gitaar, Piano, Elektrische gitaar Country, Pop, Folk, Hedendaags Country
Outnumbered Scott Harris, Dermot Kennedy, Stephen Kozmeniuk, Jay Mooncie, Stephen Noel Kozmeniuk Piano, Gitaar, Elektrische gitaar Folk, Pop, Pop Rock, Indie, Alternatieve Pop/Rock
