Orchid Yanni, Eric Sanicola, Eric John Sanicola, Steven Kudlo Piano, Gitaar Adult Alternative, Pop, Folk, New Age
O Sanctissima Sicilian Carol, Dominic Meccia, Traditional Sicilian Carol, Joshua Choe, Fritz Kreisler, Jude Roldan Gitaar, Piano, Trompet, Klarinet, Viool, Ukelele Evangelie, Folk Wereld en Land, Klassiek, Podium & Scherm, Folk
O Saya Mathangi Arulpragasam, Mathangi Arulpragasm Gitaar, Piano Soundtrack, Podium & Scherm, Folk, Musical, Pop
Over You Bryan Ferry, Brian Howes, Bobby Hart, Brody Lane, Blake Shelton, Chad Vaccarino Gitaar, Synthesizer, Bas, Piano, Elektrische gitaar Country Pop, Post-Grunge, Country, Rock, Podium & Scherm
O Waly Waly Corduroy Fifths Music Publishing, Melissa Blanton, Benjamin Britten, Traditional English, Richard Walters, Karen Unsworth Piano, Baritonsaxofoon, Cornet, Bugel, Tenor, Euphonium Celtic, Folk, Folk Wereld en Land, Evangelie, Klassiek
O WALY WALY Arr Elyssa Hinrichs-Nelson Traditional Scottish Folk, Elyssa Hinrichs-Nelson Piano Klassiek, Vroege muziek, Folk
O Pato Elvis Presley, Jon Hendricks, Fabio Eduardo de Oliveira, Neuza Teixeira, Karrin Allyson, Jayme Silva Gitaar, Piano, Elektrische gitaar Folk, Jazz, Latin Jazz, Blues, Folk Wereld en Land
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
