wow, what a painful exercise

autechre
boine, mari
coil
djam karet
eno, brian
firesign theatre, or if they don't qualify then ffwd (cleverly subsuming fripp, robert)
gabriel, peter
hendrix, jimi
indigo girls
jane's addiction
karklins, ingrid
laika
mckeown, susan
nordenstam, stina
orbital
public enemy
quicksilver messenger service (by default)
rich, robert
siberry, jane
tibbetts, steve
univers zero
varttina
woob
xtc
yezda urfa
zoviet-france

The worst is G. Peter Gabriel, Gentle Giant, Gryphon, Jeff Greinke, Gong, Manuel Gottsching, Diamanda Galas, Global Communication.