Optimistic Voices Harold Arlen, Herbert Stothart Ukulele, Guitarra, Piano Musical, Palco & Tela, Musical ou Espetáculo, Trilha sonora
Orchids In The Moonlight Edward Eliscu, Gary Meisner, Dinah Shore, Gus Kahn, Vincent Youmans Guitarra, Piano, Acordeão Latim, Folclore, Palco & Tela, Jazz, Easy Listening
Ordinary Miracle Dave Stewart, Doug Abbott, CAROLE PRIETTO, Rick Hein, Glen Ballard, Sarah McLachlan Piano, Flauta, Guitarra, Saxofone Alto, Clarinete Pop, Palco & Tela, Pop Rock, Musical, Alternativa Adulta
Out Here On My Own Lesley Gore, Fiona Hickie, Irene Cara, Mac Huff, Mariann Cook, The Kids From Fame Piano, Órgão, Guitarra, Saxofone Tenor, Baixo, Tenor Broadway, Rock, Pop Rock, Balada, Trilha sonora
Dream Sequence: B. Out of My Dreams hammerstein, Richard Walters, Gian Carlo Menotti, Scott S. Stewart, Oscar Hammerstein II, Richard Rodgers Piano, Guitarra, Soprano Rock, Palco & Tela, Folclore, Soul, Broadway
Out Of This World Bud Shank, Rich Derosa, Harold Arlen, Harold Rome, David Hazeltine, Jamie Cullum Saxofone Alto, Guitarra, Piano Palco & Tela, Broadway, Musical, Folclore, Rock
O Saya Mathangi Arulpragasam, Mathangi Arulpragasm Guitarra, Piano Pop, Trilha sonora, Musical, Palco & Tela, Folclore
Opportunity William Gluck, Jason Robert Brown, The Music, Juan Villodre, Yeah Yeah Yeahs, Charles Strouse Piano, Guitarra, Guitarra elétrica Indie Pop, Rock, Pop, Musical, Infantil
Fantasy and Fugue on "Over the Rainbow", op. 5 Celtic Woman, Alan Jay Lerner, Audrey Snyder, Elise Ecklund, edward shanaphy, E.Y. Harburg Violoncelo, Guitarra, Flauta, Trompa, Piano, Viola Broadway, Pop Clássico, Pop, Balada, Rock
Over the Wall 2 Fred Ebb, John Kander Piano, Guitarra Trilha sonora, Broadway, Vocais Pop, Musical, Palco & Tela
O Tannenbaum Jennifer Linn, FABRICIO GORRERA, Elvis Presley, Brent Edstrom, Cadenza Editions, Dave Brubeck Guitarra, Soprano, Piano, Violino, Tuba, Órgão Pop, Gospel, Clássica, Blues, Folclore
Out Of Town Amy Levy, Leslie Bricusse, Robin Beaumont, Rachel Leach, Robert Farnon Guitarra, Piano, Guitarra elétrica Clássica, Musical, Palco & Tela, Trilha sonora, Pop
Outta The Way Ford Riley, Beau Black Piano, Guitarra, Guitarra elétrica Folclore, Palco & Tela, Pop, Trilha sonora
Over The Rainbow / Simple Gifts Harold Arlen, Steven Sharp Nelson, Al Van Der Beek, The Piano Guys, Traditional Shaker Melody Violoncelo, Piano Trilha sonora, Infantil, Musical, Folclore, Palco & Tela
Our Town James Taylor, Randy Newman, Sammy Cahn, Frank Sinatra, Jimmy Van Heusen, Philip Lawson Guitarra, Piano, Guitarra elétrica Pop, Pop Rock, Musical, Trilha sonora, Easy Listening
Our Year Hanna Jones, Jack Kugell, Jack David Kugell, Matt Wong Piano Palco & Tela, Trilha sonora, Pop, Infantil, Teen Pop
Out Of The Old Jordan Powers, Josh Cumbee, Olivia Rodrigo Piano, Guitarra Musical, Palco & Tela, Trilha sonora, Pop, Teen Pop
