|  | Renaissance |  | Tales of 1001 Nights - Vol. I (1990) [Compilation] |  |  | Progressive Rock, Symphonic Prog | - | 0 | 
|  | Happy the Man |  | Beginnings (1990) [Compilation] |  |  | Symphonic Prog, Progressive Rock, Art Rock | - | 0 | 
|  | 한대수 (Hahn Daesoo) |  | 기억상실 (Loss of Memory) (1990) |  |  | Folk, Folk Rock, Progressive Folk | - | 0 | 
|  | Gong |  | Live at Sheffield 1974 (1990) [Live] |  |  | Canterbury Scene, Space Rock, Psychedelic Rock, Progressive Rock, Jazz-Rock, Jazz Fusion | - | 0 | 
|  | Gong |  | Live au Bataclan 1973 (1990) [Live] |  |  | Canterbury Scene, Space Rock, Psychedelic Rock, Progressive Rock, Jazz-Rock, Jazz Fusion | - | 0 | 
|  | Voivod |  | Live at the Paradise (1990) [Demo] |  |  | Progressive Thrash Metal | - | 0 | 
|  | Ozric Tentacles |  | Erpland (1990) |  |  | Space Rock, Progressive Rock, Psychedelic Rock, Dub | - | 0 | 
|  | Moebius / Hans-Joachim Roedelius |  | Apropos Cluster (1990) |  |  | Progressive Electronic, Ambient, Krautrock | - | 0 | 
|  | Devil Doll |  | Eliogabalus (1990) |  |  | Symphonic Rock, Progressive Rock, Experimental Rock, Goth Rock | - | 0 | 
|  | Anacrusis |  | Reason (1990) |  |  | Progressive Metal, Thrash Metal | - | 0 | 
|  | Renaissance |  | Tales of 1001 Nights - Vol. II (1990) [Compilation] |  |  | Progressive Rock, Symphonic Prog, Progressive Folk | - | 0 | 
|  | X Japan |  | Week End (1990) [Single] |  |  | Heavy Metal, Progressive Metal, Power Metal | - | 0 | 
|  | Yanni |  | Reflections of Passion (1990) [Compilation] |  |  | New Age, Progressive Electronic, Contemporary Instrumental | - | 0 | 
|  | Toy Matinee |  | Toy Matinee (1990) |  |  | Pop Rock, Progressive Rock, Progressive Pop, AOR | - | 0 | 
|  | Mike Oldfield |  | Amarok (1990) |  |  | Progressive Rock, New Age, World Music | 85 | 1 | 
|  | Electric Light Orchestra |  | Afterglow (1990) [Compilation] |  |  | Progressive Rock, Pop Rock, Art Rock | - | 0 | 
|  | Sieges Even |  | Steps (1990) |  |  | Progressive Metal | - | 0 | 
|  | Pan.Thy.Monium |  | .....Dawn (1990) [Demo] |  |  | Progressive Death Metal, Avant-garde Death Metal | - | 0 | 
|  | Roger Waters |  | The Wall: Live in Berlin (1990) [Live] |  |  | Rock Opera, Progressive Rock, Art Rock, Symphonic Rock | - | 0 | 
|  | Steve Vai |  | Passion and Warfare (1990) |  |  | Hard Rock, Progressive Rock | 85 | 2 | 
|  | Queensryche |  | Empire (1990) |  |  | Heavy Metal, Hard Rock, Progressive Metal | 65 | 1 | 
|  | Rush |  | Chronicles (1990) [Compilation] |  |  | Progressive Rock, Hard Rock | - | 0 | 
|  | Phish |  | Lawn Boy (1990) |  |  | Jam Band, Progressive Rock, Jazz Fusion, Jazz-Rock | - | 0 | 
|  | Roger Waters |  | Another Brick in the Wall (Part 2) (Live) / Run Like Hell (Potsdamer Mix) (1990) [Single] |  |  | Art Rock, Progressive Rock, Rock Opera | - | 0 | 
|  | King's X |  | Faith Hope Love (1990) |  |  | Hard Rock, Progressive Rock | - | 0 | 
|  | Atheist |  | Piece Of Time (1990) |  |  | Progressive Death Metal | - | 0 | 
|  | Vangelis |  | The City (1990) |  |  | Progressive Electronic, New Age | - | 0 | 
|  | Jethro Tull |  | Live at Hammersmith 84 (1990) [Live] |  |  | Progressive Rock, Hard Rock | - | 0 | 
|  | Conception |  | The Last Sunset (1991) |  |  | Progressive Metal, Power Metal | - | 0 | 
|  | Magellan |  | Hour Of Restoration (1991) |  |  | Progressive Metal | - | 0 |