Orchid Yanni, Eric Sanicola, Eric John Sanicola, Steven Kudlo Piano, Guitar Folk, New Age, Adult Alternative, Pop
O Sanctissima Sicilian Carol, Dominic Meccia, Traditional Sicilian Carol, Joshua Choe, Fritz Kreisler, Jude Roldan Violin, Organ, Piano, Cello, Guitar, Alto Saxophone Folk World & Country, Folk, Classical, Stage & Screen, Gospel
O Saya Mathangi Arulpragasam, Mathangi Arulpragasm Guitar, Piano Folk, Pop, Soundtrack, Stage & Screen, Musical
Os escravos de Job domínio público, Sérgio Matias da Cunha Piano Folk, Children, Folk World & Country
Over You Bryan Ferry, Brian Howes, Bobby Hart, Brody Lane, Blake Shelton, Chad Vaccarino Piano, Guitar, Bass, Synthesizer, Electric guitar Country, Pop Rock, Country Pop, Contemporary Country, Country Folk
O Waly Waly Corduroy Fifths Music Publishing, Melissa Blanton, Benjamin Britten, Traditional English, Richard Walters, Karen Unsworth Clarinet, Piano, Bass Clarinet, Trombone, Tuba, Bass Trombone Celtic, Gospel, St. Patrick's Day, Folk, Classical
O WALY WALY Arr Elyssa Hinrichs-Nelson Traditional Scottish Folk, Elyssa Hinrichs-Nelson Piano Classical, Folk, Early Music
O Pato Elvis Presley, Jon Hendricks, Fabio Eduardo de Oliveira, Neuza Teixeira, Karrin Allyson, Jayme Silva Guitar, Piano, Electric guitar Latin Jazz, Folk World & Country, Bossa Nova, Blues, Latin
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
