@killyourfm Man, I was looking into 1991 because of your post and discovered, in addition to your FANTASTIC list:
Primal Scream: Screamadelica
My Bloody Valentine: Loveless
Teenage Fanclub: Bandwagonesque
Dinosaur Jr: Green Mind
Sepultura: Arise
And the fckin last Queen album with Freddy Mercury: Innuendo
WHAT A YEAR IN MUSIC!