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| J.C. Cinel | The Light of a New Sun | Rock | |
| Jacinto Canek | Jacinto Canek | Crossover | |
| Jack Foster III | Evolution of Jazzraptor | Prog | |
| Jack Foster III | Raptorgnosis | Prog | |
| Jack Foster III | Tame Until Hungry | Prog | |
| Jack Foster III | Jazzraptor's Secret | Prog | |
| Jack Or Jive | Absurdity | Electronic | |
| Jack Or Jive | Kakugo | Electronic | |
| Jackal | Black Inside | Heavy Metal | |
| Jadis | Fanatic | Prog | |
| Jadis | Photoplay | Prog | |
| Jaén Kief | Las Hadas no Vuelan Más | Prog | |
| Jam Pain Society | Black Light Messiah | Crossover | |
| Jane | Shine On | Hard Rock | |
| Jansson Benny | Save the World | Virtuoso | |
| Janua Coeli | X Uno Come Me | Rock Christ. | |
| Janua Coeli | Dio Scende Nella Miseria | Rock Christ. | |
| Janua Coeli | Stupisco | Rock Christ. | |
| Jaugernaut | Contra-Mantra | Prog | |
| Jelly Jam | 2 | Hard Rock | |
| Jenny's Joke | Jenny's Joke | Indie Rock | |
| Jerusalem | Jerusalem | Hard Rock | |
| Jethro Tull | Heavy Horses | Folk Rock | |
| Jethro Tull | Living With the Past | Prog | |
| Jethro Tull | Christmas Album | Folk Rock | |
| Jethro Tull | Nothing is Easy | Prog | |
| Jetlag | Delusione Ottica | Prog | |
| Jezebel | Forbidden Fruit | Gothic | |
| Jil Is Lucky | The Wanderer | Rock | |
| Jimi Barbiani Band | Back to the Tracks | Heavy Blues | |
| Jing Chi | Live | Fusion | |
| Jing Chi | 3D | Fusion | |
| Jinmo | Neo Tokio | Avant Garde | |
| John-Krol Louisa | Ariel | Folk | |
| John-Krol Louisa | Alabaster | Folk | |
| John-Krol Louisa | Djinn | Folk | |
| Johnny Burning | Get Up, Get Lose, Get Off! | Sleaze | |
| Johnny Gray | We Give You the Grace to Show on Your Face | Rock | |
| Johnny Hollow | Dirty Hands | Gothic | |
| Johnson Rob | Rob Johnson / Peripheral / Guitarchitecture | Virtuoso | |
| Jolly | The Audio Guide to Happiness | Prog Metal | |
| Jolly Power | Like an Empty Bottle... Again | new | Hard Rock |
| Jonny A. | Sometime Tuesday Morning | Rock Blues | |
| Jorn | Worlchanger | Heavy Metal | |
| Jorn | Unlocking the Past + The Gathering | Hard Rock | |
| Jorn | Live in America | Hard Rock | |
| Jorn | Live in America (dvd) | Hard Rock | |
| Journey | Red 13 | AOR | |
| Journey | Generations | AOR | |
| Judas Priest | Angel of Retribution | Heavy Metal | |
| Juglans Regia | Controluce | Prog Metal | |
| Juglans Regia | Visioni Parallele | Prog | |
| Jukka Tolonen Band | JTB | Fusion | |
| Jump | ...and All the King's Men | Prog | |
| Jupiter Society | First Contact - Last Warning | Prog Metal | |
| Jupiter Society | Terraform | Prog Metal |
