Original Sin Andrew Charles Farriss, Elton John, Andrew Farriss, Michael Hutchence, Bill Bruford, Michael Kelland John Hutchence Gitarre, E-Gitarre, Klavier, Kontrabass, Sopran-Saxophon Neue Welle, Dance-Pop, Volksmusik, Jazz, College Rock
Orion Cliff Burton, Metallica, James Hetfield, Gabriela Quintero Lopez, Lars Ulrich, Rodrigo y Gabriela Gitarre, E-Gitarre Hard Rock, Metall, Flamenco, Pop Rock, Folk Welt und Land
Orphan Girl / Travelin' Man Chris Miller Klavier, Gitarre Musical, Pop, Rock, Bühne & Leinwand, Traditioneller Pop
One Track Mind Eric Clapton, Craig Carnelia, The Knickerbockers, Marvin Hamlisch, Keith Colley, Kevin Colley Klavier, Gitarre, E-Gitarre Blues Rock, Blues, Pop, Musical, Bühne & Leinwand
One Vision Brian May, Freddie Mercury, John Deacon, Philip Lawson, Roger Taylor, Queen Klavier, Gitarre, Bass, E-Gitarre, Schlagzeug Album Rock, Rock, Art-Rock/Progressive, Progressive Rock, Glam Rock
Only 1 Travis Sayles, Gavin Jackson Music, Victoria Monet McCants, Ariana Grande, Victoria McCants, Thomas Lee Brown Gitarre, Bass, Bassgitarre Pop, Rhythm & Blues
Only a Dream in Rio James Taylor Klavier, Gitarre Pop, Soft Rock, Rock, Erwachsene Contemporary-Musik, Folk Rock
Only A God Like You Tommy Walker, Heather Sorenson Gitarre, Klavier, Violine, Flöte, Cello Zeitgenössische Christen, Easy Listening, Evangelium, Bühne & Leinwand, Pop
Only God Can Help Me Now Michael McDonald Klavier, Gitarre, E-Gitarre Blauäugige Seele, Rhythm & Blues, Soft Rock, Pop, Volksmusik
Only Happy When It Rains Garrett Breeze, Butch Vig, Garbage, Nacio Herb Brown, Shirley Ann Manson, Doug Erickson Klavier, Gitarre, E-Gitarre Pop, Alternative Pop/Rock, Alternativer Tanz, Volksmusik, Alternative Rock
Opus 40 - In the opposite corner John Trie Bassgitarre, Schlagzeug, Bass, E-Gitarre, Gitarre, Kontrabass Folk Welt und Land, Jazz, Rock, Pop
Orphan Girl Gillian Welch, Emmylou Harris, Emily Crocker Gitarre, Klavier Alternative Country, Pop Rock, Boogie Woogie, Erwachsene Alternative, Rock
Orpheus Franz Liszt, Franz Schubert, Heinrich Poos, Jacques Offenbach, Sara Bareilles, Tim Wheeler Bratsche, Cello, Violine, Orgel, Klavier, Gitarre Rock, Alternative, Pop Rock, Erwachsene Alternative, Indie
O Pilgrim Come Steve Green, Douglas Kaine McKelvey, Douglas McKelvey, Wes King Klavier, Gitarre Pop, Volksmusik, Evangelium, Zeitgenössische Christen
