| Ad Infinitum | Ad Infinitum |
| Aether | Visions |
| Affinity | Affinity |
A Foot In Cold Water  | The Best Of |
| After Crying | De Profundis |
| After Crying | Almost Instrumental |
| After Crying | 6 |
| Afterglow | Yggdrasil |
| Ageness | Imageness |
| Agitation Free | Malesch |
| Agitation Free | 2nd |
| Ain Soph | A Story Of A Mysterious Forest |
| Airborne | Songs For A City |
| Akasha | Akasha |
| Alan Parsons Project | Tales Of Mystery & Imagination |
| Älgarnas Trädgård | Framtiden ar ett svavande skepp forankrat i forntiden |
| All About Eve | Winter Words: Hits & Rarities |
| Alpha Stone | Stereophonic Pop Art Music |
| Alpha Stone | Soulweed |
| Alpha Stone | Life's A Motorway |
| AlphaTaurus | Dietro L'uragano |
| Alusa Fallax | Intorno Alla Mia Cattiva Educazione |
| Amazing Blondel | Englishe Musicke |
| Ambrosia | Ambrosia |
| Amenophis | Amenophis |
| Amenophis | You and I |
| Amon Düül II | Tanz Der Lemminge |
| Amon Düül II | Made In Germany |
| Amon Düül II | Phallus Dei |
| Amon Düül II | Wolf City |
| Amon Düül II | Lemminmania |
| Amon Düül II | Live In London |
| Amon Düül II | Carnival In Babylon |
| Amon Düül II | Yeti |
| Amon Düül | Fool Moon |
| Anderson, Jon | Olias Of Sunhillow |
| Anekdoten | Vemod |
| Anekdoten | Nucleus |
| Ange | Au Dela Du Delire |
| Ange | Le Cimetière Des Arlequins |
| Ange | Par Les Fils De Mandrin |
| Ange | Emile Jacotey |
| Änglagård | Hybris |
| Änglagård | Epilog |
| Ankh | Expected Unexpected |
| Annalist | Artemis |
| Annexus Quam | Osmose |
| Another Roadside Attraction |
Another Roadside Attraction |
| Anyone's Daughter | Anyone's Daughter |
| Anyone's Daughter | Adonis |
| Anyone's Daughter | In Blau |
| Anyone's Daughter | Piktors Verwandlungen |
| A Piedi Nudi | Creazione |
| A Piedi Nudi | A Piedi Nudi |
| Apoteosi | Apoteosi |
| April Wine |
April Wine |
| Aphrodites Child | 6 6 6 |
| Arabesque | Tales Of Power |
| Archnoid | Archnoid |
| Araujo, Marco Antonio | Quando a sorte te solta um cisne... |
| Arena | Pride |
| Arena | The Visitor |
| Arena | Contagion |
| Architectural Metaphor | Creature Of The Velvet Void |
| Area | Tic and Tac |
| Arnold, Horacee | Tales Of The Exonerated Flea |
| Arthur Brown | Galactic Zoo Dossier |
| Arzachel | Arzachel |
| Asgard | Gotterdammerung |
| Asgard | Arkana |
| Asgard | Esoteric Poem |
| Asgard | Imago Mundi |
| Asgard | Drachenblut |
| Ashra | Correlations |
| Ashra | New Age Of Earth |
| Ashra | Walkin' The Desert |
| Ash Ra Tempel | Ash Ra Temple |
| Ash Ra Tempel | Join Inn |
| Ash Ra Tempel | Starring Rossi |
| Ash Ra Tempel | Schwingungen |
| Asia | Arena |
| Asia Minor | Crossing The Line |
| Asia Minor | Between Flesh & Divine |
| Atila | Intencion |
| Atila | Reviure |
| Atlas | Bla Vardag |
| Atoll | Musiciens Magiciens |
| Atoll | L'Araignee-Mal |
| Atoll | Terito |
| Atomic Rooster | Made In England |
| AufklÄrung | De' La' Tempesta ... L'Oscuro Piacere |
| Autograf | Autograf |
| Ave Rock | Ave Rock | Aviolinee Utopia | Aviolinee Utopia |
| Ayers, Kevin | Joy Of A Toy |
| Ayers, Kevin | Shooting At The Moon |
| Ayers, Kevin | Bananamour |
| Ayers, Kevin | Whatevershebringswesing |
| Ayreon | Into The Electric Castle |
| Ayreon | The Dream Sequence - Part 1 |
| Azigza | Kriya |