A

A Chair With Wheels
The Abaddyon Project
Abbfinoosty
A.C.T.
Acuity
Adachi Brothers
Adagio
Steve Adams
Advent
Aeolus
Aemen
after@all
After...
Ageness
Agent Cooper
Ainur
Aisles
Jan Akkerman
Alamaailman Vasarat
Alaska
Alias Eye
Alquin
Altair
Alucarda
Always Almost
Amoeba/Robert Rich
Amon Duul 2
Amon Ra
Anekdoten
Anekdoten (England)
Ange
Anglagard
Anima Dominum
Anoxie
Antropophobia
Apogee
Arabesque
Aragon
Arashk
Archetype
Arena
Arion
Ars Nova
Arti E Mestieri
Artifex
Art Rock Circus
Arthur Ellis 2000
Asgard
AshWave
Asia
(Original) Asia
At Vance
Aton's
Audiac
Audio Warfare
Aurora Lunare
The Aurora Project
Aviary
Ayreon
Azazello