Operator Grateful Dead, Diana Krall, William Spivery, Ron McKernan, Jim Croce, The Manhattan Transfer Piano, Electric guitar, Guitar, Organ, Electronic keyboard, Ukulele Adult Contemporary, Folk Rock, Psychedelic Rock, punk, Folk
Ophelia Sherry Lewis, Robbie Robertson, Jeremiah Fraites, Wesley Schultz, Jeremy Fraites, The Lumineers Cello, Bass, Double Bass, Viola, Violin, Piano Country, Folk, Musical, Rock, Alternative Folk
On A Little Street In Singapore Peter De Rose, Frank Sinatra, Billy Hill, The Manhattan Transfer, Bob Dylan Guitar, Piano Jazz Standards, Easy Listening, Jazz, Big Band, Folk Rock
Once I Was Ricky Ian Gordon, Tim Buckley, Larry Beckett Guitar, Piano Folk Rock, Folk, Classical, Easy Listening, Pop
Our Time Now Mia Post, Tom Higgenson, Plain White T's, Mike Daly Piano, Guitar Emo, Punk-Pop, Pop, Folk Rock, punk
Our House Nathaniel Hontz, Cathal Smith, Graham Nash, Christopher Foreman, Cathal Smyth, Ed Lojeski Guitar, Piano, Ukulele, Soprano, Bass, Viola Pop Rock, Folk, Pop, Classic Rock, Reggae
Outrageous R Kelly, Britney Spears, Brian Eno, Paul Simon, R. Kelly Piano, Guitar Folk Rock, Pop, Rock, Pop Rock, Folk
One Of These Things Joe Raposo, Bruce Hart, Nick Drake Guitar, Piano Musical, British Folk, Children, Pop, Folk Rock
Outside of a Small Circle of Friends Phil Ochs Electric guitar, Guitar, Piano Folk Rock, Psychedelic, Folk, Pop, Garage Rock
Pale Blue Eyes Alpin Smart, Lou Reed, The Velvet Underground Guitar, Piano, Electric guitar Rock & Roll, Rock, Pop Rock, Proto-Punk, punk
Paper Thin Hotel Phillip Spector, Phil Spector, Leonard Cohen Guitar, Piano Rock, Folk Rock, Pop, Pop Rock, Folk
