Suggest one obsure album we all should hear

Sorry, but I cannot control myself by listing only one:

All Them Witches, "Our Mother Electricity"
The Bassholes, "Blue Roots"
Sheila Chandra, "Weaving My Ancestor’s Voices"
Con Brio, "From The Hip"
Demolition Doll Rods, "Tasty"
Mia Dyson, "Parking Lots"
Easy Star All-Stars, "Dub Side Of The Moon" (Dark Side Of The Moon as reggae)
Electric Eel Shock, "Beat Me"
Elephant9, "Dodovoodoo"
Rufus Harley, "The Atlantic Recordings" (bagpipe jazz)
Howling Diablos, "Beatnik Mambo"
The Jody Grind, "One Man’s Trash"
Long Tall Deb & Colin John, "Dragonfly"
Mano Negra, "Puta’s Fever"
Mas!, "A Caribbean Christmas Party"
Material, "Hallucination Engine"
Bruce McCullough, "Shame Based Man"
Don Menza, "Live At Carmelo’s"
Mudpuppy, "Mudpuppy"
Preacher Boy, "Gutters and Pews"
Samsara Blues Experiment, "Long Distance Trip"
Unholy Modal Rounders, "Have Moicy!"

I have many but to follow and respect the OP... 

Moses Rascoe-Blue Flying Fish 454 1987

It's a live recording of acoustic blues with audiophile sound quality

Dory Previn

Small Faces = Ogden's Nut Gone Flake

Robin Trower, Jimmy Lane, Buddy Guy.