Artists who should be in the list but they never made one really great album, or if they have I don't have it:
Ace Spectrum
Roy Ayers
Badly Drawn Boy
Bee Gees
George Benson
Blue Magic
James Brown
Kate Bush
Stanley Clarke
Con Funk Shun
Crosby, Stills, Nash & Young
The Delfonics
Martin Denny
Ian Dury & The Blockheads
Roberta Flack
Funkadelic
George Duke
Gap Band
Grandmaster Flash & The Furious Five
Jamiroquai
Nik Kershaw
Chaka Khan
King Tubby
Kool & The Gang
Love Unlimited Orchestra
The Lovin' Spoonful
LTD
Madonna
Henry Mancini
The Manhattans
Morrissey
The O'Jays
Pleasure
Prefab Sprout
The Rah Band
Return To Forever
Shakatak
Soft Cell
Spandau Ballet
The Stylistics
Donna Summer
Sylvester
Talk Talk
The Temprees
Underworld
Voivod
Wham!
The Whispers
etc etc
The rest of the best...