Once In Love With Amy Jack Grassel, Frank Loesser, Dean Martin Clarinete, Trombone, Viola, Ukulele, Trompete, Trompa Pop, Musical ou Espetáculo, Country, Blues, Folclore
On The Atchison Topeka And The Santa Fe Brent Edstrom, Harry Warren, Judy Garland, Bing Crosby, Tommy Dorsey, Johnny Mercer Piano, Guitarra, Ukulele, Guitarra elétrica, Órgão, Teclado eletrônico Trilha sonora, Folclore, Palco & Tela, Blues, Pop Rock
One Thing Leads To Another Jamie West-Oram, Alfred Agius, Adam Woods, Rupert Greenall, Cy Curnin, The Fixx Piano, Baixo, Guitarra, Guitarra elétrica Dance-pop, Folclore, Rock, Blues, Pop Rock
On The Street Where You Live Dean Martin, David Hazeltine, Andy Williams, Nat King Cole, lerner, Dennis DeYoung Piano, Harpa, Teclado eletrônico, Órgão, Ukulele, Saxofone Alto Rock, Broadway, Jazz, Musical, Folclore
On The Town Frank Sinatra, Adolph Green, Betty Comden, Jules Munshin, Gene Kelly, Roger Edens Piano, Guitarra Palco & Tela, Folclore, Pop, Trilha sonora, Musical
Ooh Wee Teena Marie, Doug Grigsby, Willie Dixon Guitarra, Guitarra elétrica, Piano Disco, Rhythm & Blues, Blues, Folclore, Pop
Ooby Dooby Richard A. Penner, Allen Penner, Wade Moore, Wade L. Moore, Creedence Clearwater Revival, Roy Orbison Guitarra, Piano Pop Rock, Folclore, Blues, Jazz, Rockabilly
Only Love Can Break A Heart Gene Pitney, Burt Bacharach, Hal David Guitarra, Piano, Guitarra elétrica Pop, Ídolo Adolescente, Pop Rock, Jazz, Rock
One Bourbon One Scotch One Beer George Thorogood, Lonesome George, John Lee Hooker Piano, Guitarra Folclore, Blues Elétrico, Blues, Jazz, Detroit Blues
One moment Susan Bowker, Robert Bowker, Ken Friedrich, Pierluigi Alessandrini Violino, Violoncelo, Piano, Saxofone, Oboé, Flauta Blues, Jazz
Open The Door Richard! Dan Howell, Louis Jordan, Dusty Fletcher, John Mason, Count Basie Guitarra, Piano Musical, Jazz, Big Band, Blues Urbano, Jump Blues
On The Sunny Side Of The Street Diego Monteiro, Frankie Laine, Dorothy Fields, Frank Sinatra, Dizzy Gillespie, Nat King Cole Piano, Guitarra, Órgão, Teclado eletrônico, Trombone, Trompete Country, Pop, Clássica, Folclore, Jazz
Orange Blossom Special Ervin T. Rouse, Chris Gorman, Billy Vaughn, Audrey Snyder, Darren Dailey, Rachel Jennings Trompa barítono, Baixo, Piano, Tuba, Fliscorne, Trombone baixo País Tradicional, Clássica, Blues, Jazz, Country
Orangenlied Antje Günther, Henning Gemke Guitarra, Piano Rock, Clássica, Blues, Folclore Mundo e País, Nova Era
