Open My Heart James Quenton, Terry Lewis, James Harris III, Yolanda Adams Gitarre, Klavier, E-Gitarre Volksmusik, Evangelium, Pop
Operator Grateful Dead, Diana Krall, William Spivery, Ron McKernan, Jim Croce, The Manhattan Transfer Klavier, Gitarre, Ukulele, Elektronische Tastatur, Orgel, E-Gitarre Rock, Erwachsene Contemporary-Musik, Reggae, Folk Rock, Punk
Ophelia Sherry Lewis, Robbie Robertson, Jeremiah Fraites, Wesley Schultz, Jeremy Fraites, The Lumineers Schlagzeug, Violine, Ukulele, Klavier, Gitarre, Bratsche Alternative Country, Alternative Folk, Country, Alternative Pop/Rock, Folk Rock
Opportunity William Gluck, Jason Robert Brown, The Music, Juan Villodre, Yeah Yeah Yeahs, Charles Strouse Klavier, Gitarre, E-Gitarre Indie Pop, Bühne & Leinwand, Musical, Kinder, Pop
Out There Ryan Newell, Adam D J Taylor, Brian Strohmetz, Cy Coleman, Sister Hazel, Jim Dale Klavier, Gitarre, Baritonhorn, Bass, Euphonium, Bariton Theater, Bühne & Leinwand, Broadway, Kinder, Rock
Overdue Matthew Bellamy, Billy Mann Gitarre, Klavier Progressive Rock, Alternative Rock, Erwachsene Alternative, Pop, Alternative Pop/Rock
Fantasy and Fugue on "Over the Rainbow", op. 5 Celtic Woman, Alan Jay Lerner, Audrey Snyder, Elise Ecklund, edward shanaphy, E.Y. Harburg Cello, Gitarre, Flöte, Horn, Klavier, Bratsche Kinder, Traditioneller Pop, Jazz, Broadway, Alternative
O Tannenbaum Jennifer Linn, FABRICIO GORRERA, Elvis Presley, Brent Edstrom, Cadenza Editions, Dave Brubeck Gitarre, Sopran, Klavier, Violine, Tuba, Orgel Blues, Bühne & Leinwand, Jazz, Musical, Klavierjazz
Our Generation Guy Farley, Tokio Myers, Craigie Dodds Klavier Klassisch, Elektronisch, Volksmusik, Indie-R&B, Alternative
Our God Saves J. Daniel Smith, Brenton Brown, Paul Baloche Violine, Klavier, Flöte, Cello, Gitarre, Oboe Zeitgenössische Christen, Volksmusik, Pop, Bühne & Leinwand, Evangelium
Our Day Will Come Amy Winehouse, The Romantics, Jamie Cullum, Bob Hilliard, Mort Garson Klavier, Gitarre, E-Gitarre Jazz, Rhythm & Blues, Broadway, Volksmusik, Reggae
Our First Time Brian Wiggins, Ari Levine, Bruno Mars, Christopher Steven Brown, Dwayne Chin-Quee, Eric Hernandez Gitarre, Klavier Zeitgenössisches R&B, Pop, Kinder, Funk / Soul, Rhythm & Blues
Our Lips Are Sealed Jane Wiedlin, Terry Hall, The Go-Go's Klavier, Gitarre, E-Gitarre Pop, Neue Welle, Bühne & Leinwand, Rock, Volksmusik
Out Last Night Brett James, Kenny Chesney Gitarre, Klavier, E-Gitarre Volksmusik, Country, Zeitgenössisches Country, Pop
Outnumbered Scott Harris, Dermot Kennedy, Stephen Kozmeniuk, Jay Mooncie, Stephen Noel Kozmeniuk Klavier, Gitarre, E-Gitarre Pop Rock, Indie, Alternative Pop/Rock, Pop, Volksmusik
