Operator Grateful Dead, Diana Krall, William Spivery, Ron McKernan, Jim Croce, The Manhattan Transfer Guitarra, Piano, Ukelele, Teclado electrónico, Órgano, Guitarra eléctrica Pop, Reggae, Folk, Pop Rock, Contemporáneo para adultos
Ophelia Sherry Lewis, Robbie Robertson, Jeremiah Fraites, Wesley Schultz, Jeremy Fraites, The Lumineers Piano, Guitarra, Ukelele, Violín, Batería, Oboe Country, Pop, Musical, País alternativo, Pop Rock
Open Your Mind Melissa Etheridge Guitarra, Piano, Guitarra eléctrica Rock, Folk, Pop, Folk Rock, Pop Rock
On A Little Street In Singapore Peter De Rose, Frank Sinatra, Billy Hill, The Manhattan Transfer, Bob Dylan Piano, Guitarra Jazz, Big Band, Estándares de jazz, Folk, Folk Rock
Once I Was Ricky Ian Gordon, Tim Buckley, Larry Beckett Guitarra, Piano Folk, Música suave, Folk Rock, Clásica, Pop
Our Time Now Mia Post, Tom Higgenson, Plain White T's, Mike Daly Guitarra, Piano Punk-Pop, Emo, Folk Rock, punk, Pop
Our House Nathaniel Hontz, Cathal Smith, Graham Nash, Christopher Foreman, Cathal Smyth, Ed Lojeski Ukelele, Piano, Guitarra, Fagot, Oboe, Flauta punk, Folk Rock, Pop Rock, Reggae, Rock
Outrageous R Kelly, Britney Spears, Brian Eno, Paul Simon, R. Kelly Guitarra, Piano Rock, Pop, Folk, Pop Rock, Folk Rock
One Of These Things Joe Raposo, Bruce Hart, Nick Drake Guitarra, Piano Infantil, Folk británico, Escenario y Pantalla, Banda sonora, Folk Rock
Outside of a Small Circle of Friends Phil Ochs Guitarra, Piano, Guitarra eléctrica Pop, Folk Rock, Garage Rock, Folk, Psicodélico
Pale Blue Eyes Alpin Smart, Lou Reed, The Velvet Underground Guitarra, Piano, Guitarra eléctrica Rock, Experimental, Proto-Punk, Folk, Pop
Paper Thin Hotel Phillip Spector, Phil Spector, Leonard Cohen Piano, Guitarra Pop Rock, Rock, Folk Rock, Folk, Pop
