Open My Heart James Quenton, Terry Lewis, James Harris III, Yolanda Adams Piano, Guitar, Electric guitar Gospel, Pop, Folk
Operator Grateful Dead, Diana Krall, William Spivery, Ron McKernan, Jim Croce, The Manhattan Transfer Guitar, Piano, Electric guitar, Organ, Ukulele, Electronic keyboard Adult Contemporary, Folk Rock, Psychedelic Rock, punk, Folk
Ophelia Sherry Lewis, Robbie Robertson, Jeremiah Fraites, Wesley Schultz, Jeremy Fraites, The Lumineers Oboe, Recorder, Piano, Flute, Violin, Guitar Country, Folk, Musical, Rock, Alternative Folk
Opportunity William Gluck, Jason Robert Brown, The Music, Juan Villodre, Yeah Yeah Yeahs, Charles Strouse Piano, Guitar, Electric guitar Folk, Pop, Indie Pop, Stage & Screen, Soundtrack
Out There Ryan Newell, Adam D J Taylor, Brian Strohmetz, Cy Coleman, Sister Hazel, Jim Dale Flugelhorn, Tuba, Bass Trombone, Cornet, Baritone, Euphonium alternative, Folk, Pop, Broadway, Stage & Screen
Overdue Matthew Bellamy, Billy Mann Guitar, Piano Britpop, Adult Alternative, Progressive Rock, Brit-Pop, Folk
Fantasy and Fugue on "Over the Rainbow", op. 5 Celtic Woman, Alan Jay Lerner, Audrey Snyder, Elise Ecklund, edward shanaphy, E.Y. Harburg Piano, Ocarina, Violin, Organ, Banjo, Alto Saxophone Broadway, Traditional Pop, Celtic, Jazz, Children
O Tannenbaum Jennifer Linn, FABRICIO GORRERA, Elvis Presley, Brent Edstrom, Cadenza Editions, Dave Brubeck Trumpet, Trombone, Piano, Violin, Cello, Clarinet Musical, Classical, Soundtrack, Children, Folk
Our Generation Guy Farley, Tokio Myers, Craigie Dodds Piano Pop, alternative, Folk, Indie R&B, Electronic
Our God Saves J. Daniel Smith, Brenton Brown, Paul Baloche Guitar, Piano, Recorder, Flute, Violin, Oboe Folk, Gospel, Pop, Contemporary Christian, Stage & Screen
Our Day Will Come Amy Winehouse, The Romantics, Jamie Cullum, Bob Hilliard, Mort Garson Guitar, Electric guitar, Piano Pop, Jazz, Pop Rock, Folk, Rock
Our First Time Brian Wiggins, Ari Levine, Bruno Mars, Christopher Steven Brown, Dwayne Chin-Quee, Eric Hernandez Piano, Guitar Children, Contemporary R&B, Funk / Soul, Pop, Folk
Our Lips Are Sealed Jane Wiedlin, Terry Hall, The Go-Go's Guitar, Piano, Electric guitar Stage & Screen, Rock, Folk, Pop, Pop Rock
Out Last Night Brett James, Kenny Chesney Electric guitar, Guitar, Piano Contemporary Country, Pop, Country, Folk
Outnumbered Scott Harris, Dermot Kennedy, Stephen Kozmeniuk, Jay Mooncie, Stephen Noel Kozmeniuk Guitar, Piano, Electric guitar Alternative Pop/Rock, Pop, Indie, Pop Rock, Folk
