| Offworld Sounds (1) | Oficeri Rosii (1) | Oficina Blues (3) |
| Oficina G3 (16) | Oficina de Cordas (2) | Oficina de Cordas de Pernambuco (1) |
| Oficina do Diabo (1) | Oficina dos Menestreis (1) | Ofilio (1) |
| Ofiveone Presents Bounce (1) | Ofori Amponsah (6) | Oforia (9) |
| Ofra Chaza (1) | Ofra Harnoy (34) | Ofra Harnoy - Cello, London Philharmonic Orchestra - Sir Charles Mackerras (1) |
| Ofra Harnoy Cello, The Armin Electric Strings (1) | Ofra Harnoy, Cello/William Aide & Helena Bowkun, pianists (1) | Ofra Harnoy, Cincinnati Pops Orchestra (1) |
| Ofra Harnoy, Toronto Chamber Orchestra (2) | Ofra Harnoy, cello - Michael Dussek, piano (1) | Ofra Harnoy, cello, Armin Electric Strings (1) |
| Ofra Harnoy, cello, Michael Dussek, piano (1) | Ofra Harnoy, cello, Orford Quartet (2) | Ofra Haza (61) |
| Ofra haza (1) | Ofrah Harnoy (1) | Ofsdal/Berg/Jacobsen (1) |
| Ofspring (1) | Ofício Divino das Comunidades - 8 (1) | Ofício Divino das Comunidades - 9 (1) |
| Og (4) | Og Mandingo (2) | Og Mandino (5) |
| Ogada, Ayub (1) | Ogam (3) | Ogata Megumi (3) |
| Ogawa Maki (1) | Ogden (1) | Ogden Nash & Vernon Duke (1) |
| Ogden, Martin, Gledhill, Sharp & Loxam (1) | Ogden, Monteux - London Symphony Orch. (1) | Ogden/Stevens (1) |
| Ogdon - Allegri - Bean (1) | Ogdon - Rozhdestvensky (1) | Ogdon, Allegri Qt, Music Group of London (1) |
| Ogdon, Will (1) | Ogemabenez (1) | Ogeret Marc (1) |
| Ogerman (1) | Oggg van port brasta (1) | Oggitani (1) |
| Oggs (1) | Ogham (2) | Ogi Gee Cash (1) |
| Ogidi Gidi (1) | Ogie (1) | Ogie Alcasid (13) |
| Ogin Betsamo (3) | Oginome Yoko 荻野目洋子 (1) | Oginsky (1) |
| Ogiva (1) | Oglesby Erskine (1) | Oglio Records (1) |
| Ogm 30 contemporary (1) | Ogmias (1) | Ognjen I Prijatelji (1) |
| Ognjen i Prijatalji (1) | Ognjen i prijatelji (1) | Ogo (2) |
| Ogo Chime & the band (1) | Ogobor (1) | Ogonek & Cooh (1) |
| Ogonjok (1) | Ogopa (1) | Ogopa Djs (1) |
| Ogou (1) | Ogp (1) | Ogre (2) |
| Ogre * Atkins (1) | Ogres Muzikas skolas koris (1) | Ogres de Barback (2) |
| Ogum (1) | Ogun Sanlisoy (3) | Ogurusu Norihide (1) |
| Oguz Aksac (1) | Oguz Buyukberber (1) | Oguz Büyükberber (1) |
| Oguz Büyükberber Quintet (1) | Oguz Can Ozgenc (1) | Oguz Yilmaz (3) |
| Ogyatanaa & Uhuru Dance Band (1) | Ogün Sanlisoy (1) | Oh (1) |
| Oh Astro (1) | Oh Bonic (1) | Oh Boy records (1) |
| Oh Brother Where Art Thou (1) | Oh Happy Day (3) | Oh Little Town of Bethlehem (1) |
| Oh Lord, My Redeemer (1) | Oh Man Gospel Singers (1) | Oh Marita (1) |
| Oh My God (2) | Oh My Goddess (1) | Oh No (2) |
| Oh No Ono (2) | Oh No! Oh M (2) | Oh Phil (1) |
| Oh Romeo (2) | Oh Shit Orchestra (1) | Oh Susanna (7) |
| Oh Well (6) | Oh Well feat. Randal d. Sneed (1) | Oh What A Nite (1) |
| Oh Wow (1) | Oh beast (2) | Oh brother where art thou (1) |
| Oh christmas (1) | Oh my god (3) | Oh my god. (1) |
| Oh well (1) | Oh! Belgium (1) | Oh! My Garden (1) |
| Oh! My Goddes (2) | Oh! my garden (1) | Oh!Penelope (4) |
| Oh*Yeah (1) | Oh, Range (1) | Oh, Sussannah! Sing-song music for children and families (1) |
| Oh-OK (1) | OhGr (2) | OhNo (1) |
| Ohad (1) | Ohad Moskowitz (1) | Ohama (1) |
| Ohana (1) | Ohana O Kauai (1) | Ohana, Maurice (3) |
| Oharas ork., Shigenori (1) | Ohbijou (1) | Ohcame (1) |
| Ohdehe (1) | Ohehundredhours (1) | Oheisvasara (1) |
| Ohel (1) | Oheneba Kissi (6) | Ohetaler Musikanten (2) |
| Ohgr (4) | Ohgr (from Skinny Puppy) (1) | Ohguro Maki (2) |
| Ohguro, Maki (1) | Ohhkl (1) | Ohi On (1) |
| Ohi ho bang bang (1) | Ohio Baptist General Convention Mass Choir (1) | Ohio Division of Wildlife (1) |
| Ohio Expesss (1) | Ohio Express (13) | Ohio Express & 1910 Fruitgum Co (1) |
| Ohio Express & Fruitgum Co (1) | Ohio Knox (1) | Ohio Liberation Army (1) |
| Ohio Music Education Association (1) | Ohio Players (35) | Ohio State Marching Band (1) |
| Ohio State Univ. Concert Band, Loren Marsteller (1) | Ohio State Univeristy Marching Band (1) | Ohio State University Glee Club (1) |
| Ohio State University Marching Band (8) | Ohio State University Men's Glee Club (4) | Ohio University Marching 110 (2) |
| Ohio University Marching Band (1) | Ohio players (2) | Ohlson Har Semester Production (1) |
| Ohlson har semester production (1) | Ohm (3) | Ohm (Suck me Plasma) (1) |
| Ohm Guru (4) | Ohm Records (1) | Ohm Resistance (1) |
| Ohm Series (17) | Ohm Square (7) | Ohm, Daniel John (1) |
| Ohm-G (1) | Ohm-Kill (1) | Ohm-g (3) |
| Ohm: (2) | Ohmega Tribe (1) | Ohmega Watts (1) |
| Ohmen (1) | Ohmori Nobukazu (1) | Ohmori, Akira (1) |
| Ohn (2) | Ohn Peel - BBC Radio Programs (1) | Ohne (5) |
| Ohne Filter Musik Pur (2) | Ohne Geige (1) | Ohne Gewähr (1) |
| Ohno (1) | Ohno Yuji (1) | Ohno Yuji Trio (1) |
| Ohnsorgs (1) | Oho (1) | Ohop Valley Boys (1) |
| Ohota-san (1) | Ohrbooten (3) | Ohrenfeindt (2) |
| Ohrenpeyn (2) | Ohrenschmerz (1) | Ohrenwärmer (2) |
| Ohreule (1) | Ohridski trubaduri (1) | Ohrrausch (1) |
| Ohrwurm (1) | Ohrwürmer (4) | Ohrwürmer - der 50iger (1) |
| Ohs, The (1) | Ohsama (1) | Ohsha Kai (1) |
| Ohta, Herb (1) | Ohta, Herb Jr. (1) | Ohta-San (2) |
| Ohta-San"Herb Ohta" (1) | Ohta-san (4) | Ohta-san & Herb Ohta Jr. (1) |
| Ohtar (3) | Ohym Series (1) | Oi (1) |
| Oi Dramz (6) | Oi Foboi Toy Prigkhpa (1) | Oi Polloi (12) |
| Oi Rembetes Tou Aigaiou (1) | Oi Va Voi (7) | Oi Ventilo (1) |
| Oi! Scouts (1) | Oi! Skampilation (1) | Oi! The Arrase (1) |
| Oi! The Rarities Vol. 2 (1) | Oi-Melz (2) | Oi-SKALL MATES (5) |
| Oi-Va-Voi (1) | Oi-melz (1) | Oibel Troibel (1) |
| Oid Mortales (5) | Oidoxie (6) | Oif Simchas (1) |
| Oigalê (1) | Oikos Worship (1) | Oikyotaan (1) |
| Oil (7) | Oil 10 (6) | Oil Can (1) |
| Oil Filter (1) | Oil In The Eye (2) | Oil On Canvas (3) |
| Oil On Cavnas (1) | Oil Tasters (1) | Oil on canvas (1) |
| Oil seed rape (1) | Oil-Len (1) | Oilean (1) |
| Oiler (1) | Oilers (1) | Oiling Boiling (2) |
| Oiling Boiling Rhythm'n Blues Band (1) | Oiling Boiling Rythm'n' Blues Band & Blues Mama (1) | Oilville Music Machine, The (1) |
| Oily Rag (1) | Oin-Oin (2) | Oin-oin (10) |
| Oingo Boingo (50) | Oink Floyd (1) | Oio (1) |
| Oiro (2) | Oisac (1) | Oiseaux (2) |
| Oisin (9) | Oisin Mac Diarmada,Brian Fitzgerald,Michael Ò Ruanaigh (1) | Oisre (1) |
| Oistar Proper (1) | Oistrach Abendroth Berlin Radio o (1) | Oistrakh (3) |
| Oistrakh Cluytens (1) | Oistrakh Klemperer (1) | Oistrakh Trio (1) |
| Oistrakh, David (1) | Oistrakh, David * Kogan Leonid (1) | Oistrakh, Kondrashin (1) |
| Oistrakh, Mitropoulos, NY Phil.; Rostropovich, Ormandy, Philadelphia Orch. (1) | Oistrakh, Richter (1) | Oistrakh, Rostropovich, & Richter (2) |
| Oistrakh, Rostropovich, Richter - BPO, Karajan - Cleveland, Szell (1) | Oistrakh, Rostropovitch, Richter, von Karajan, Szell (1) | Oistrakh: Moscow Radio Sym. Orch. (1) |
| Oistrakh; Hindemith; Abbado; Kletzki (1) | Oisín (1) | Oisín Mac Diarmada (2) |
| Oitava Igreja Presbiteriana de Belo Horizonte (1) | Oiters (1) | Oithanasie (6) |