| Artist |
Title
|
Album |
Duration |
Rating |
Format |
Released |
| Musetta | Ophelia's Song | 500 Song Trip | 4:09 | not rated | MP3 Set | 2012 |
| Camper Van Beethoven | Opi Rides Again | Telephone Free Landslide Victory | | not rated | MP3 | 1985 |
| Camper Van Beethoven | Opie Rides Again / Club Med Su | Popular Songs Of Great Enduring Strength And Beauty | | not rated | MP3 | 2008 |
| Ka'au Crater Boys | Opihi Man | Island Roots | 2:47 | not rated | MP3 | 1999 |
| Graffin, Greg (Greg Graffin) | Opinion | American Lesion | 3:16 | not rated | MP3 | 1997 |
| Piaf, Edith (Edith Piaf) | Opinion Publique | 30th Anniversaire | 3:13 | not rated | MP3 Set | 1993 |
| The Drovers | Opium For Christmas (demo) | Archives | 3:31 | not rated | MP3 | 2013 |
| Skycruiser | Opotomi | TEXTRONIX mix tape by Hyperbubble | 3:30 | not rated | MP3 | 2007 |
| Costello, Elvis (Elvis Costello) & The Attractions | Opportunity | Get Happy!! | | not rated | MP3 | 1980 |
| Haggard, Merle (Merle Haggard) & Willie Nelson | Opportunity to Cry | Pancho & Lefty | | not rated | MP3 | 10/21/2003 |
| Bird, Andrew (Andrew Bird) | Opposite Day | Andrew Bird & The Mysterious Production of Eggs | 4:31 | not rated | MP3 | 2005 |
| Various artists | Opposite People | All Around this World (Africa) | 4:59 | not rated | 2MP3 | |
| Clapton, Eric (Eric Clapton) | Opposites | There's One In Every Crowd | 4:44 | not rated | MP3 | 1975 |
| Abdul, Paula (Paula Abdul) | Opposites Attract | Forever Your Girl | 4:25 | not rated | MP3 | 1988 |
| The Human Expression | Optical Sound | Nuggets: Original Artyfacts From The First Psychedelic Era 1965-1968 | 2:37 | not rated | Tape Set | 1998 |
| Byrne, David (David Byrne) & St. Vincent | Optimist | Love This Giant | 3:49 | not rated | MP3 | 2012 |
| Radiohead | Optimistic | Kid A | 5:16 | not rated | CD | 2000 |
| Blues Traveler | Optimistic Thought | Travelers & Thieves | 3:30 | not rated | CDR | 1991 |
| MGM Studio Orchestra & Chorus | Optimistic Voices | The Wizard Of Oz | 2:05 | not rated | CD | 1939 |
| Dorsey, Tommy (Tommy Dorsey) | Opus | Tommy Dorsey | 3:14 | not rated | CD | 1996 |
| Dorsey, Tommy (Tommy Dorsey) And His Orchestra (Tommy Dorsey And His Orchestra) | Opus #1 | Yes, Indeed! | 2:55 | not rated | CD | 1990 |
| Tommy Dorsey Orchestra (Members of) | Opus (Number) One | Swing's Greatest Hits | 3:19 | not rated | MP3 Set | |
| Mahavishnu Orchestra | Opus 1 | Visions of the Emerald Beyond | 0:26 | not rated | MP3 | 1974 |
| The Mills Brothers | Opus 1 | 22 Great Hits | 1:48 | not rated | Tape | |
| Zappa, Frank (Frank Zappa) - The Barking Pumpkin Digital Gratification Consort | Opus I, No. 1 (1st Movement. Andante) | Francesco Zappa | 3:32 | not rated | MP3 | 1992 |