Suggest one obsure album we all should hear


I love when I discover an album that's new to me, and great.Please share one so we can all broaden our musical horizons.

Mine is:
Wishbone Ash  'Argus'
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Not a very good recording, but can be entertaining...
Rick Wakeman, Journey to the Center of the Earth.
Igor Stravinsky
L'Histoire du Soldat

Deutsche Grammophon
recorded 1975
Boston Symphony Players

This never made it to CD.  It's an extraordinary performance, both musically and how well it was engineered.  Just marvelous.  
"Loop-Finding-Jazz-Records" by Jan Jelinek (2001). This minimalist electronic ambient album is quite special. Great for late night listening.

It might be difficult to find a hard copy, but you can check it out at youtube:

https://www.youtube.com/playlist?list=OLAK5uy_mRqd3w68qYN4deTCJUEdJdyMiXwBSBaw4
While none of these are sonic spectaculars, I’ve always enjoyed listening to:
1) "Living with the Animals" by Mother Earth (lead singer = Tracey Nelson and song writer Powell St. John who also was with the 13th Floor Elevators)
2) "The Psychedelic Sounds of the 13th Floor Elevators" (arguably, the first psychedelic rock band and certainly one of the most interesting)
3) "On the Shore" by Trees (a short-lived psychedelic folk-rock band somewhat reminiscent of Fairport Convention)4) "Mirror Man" by Captain Beefhart and the Magic Band (the Captain at his best)5) "The Loading Zone" by The Loading Zone (a much maligned "second rate" house band for the Fillmore and a very harsh recording on RCA records but it’s on Tidal and it brings back a lot of memories)
6) "Ahead Rings Out" by Blodwyn Pig (evocative of early Jethro Tull, not surprisingly given that at least one member of the group played in the other band).
7) "The Sons of Champlin" by The Sons of Champlin (sort of like Tower of Power, again there were personnel exchanges between these groups)8) "Big Brother and the Holding Company" (with Janis as the lead singer, doing the finest renditions of "Ball and Chain" and "Summertime" I’ve heard)9) "My Griffin is Gone" (by country rock singer Hoyt Axton but it’s not country)
10) "Buenos Noches from a Lonely Room" (Dwight Yoakam in an interesting performance and an excellent recording but in my much disliked country music genre, likely an artifact of me growing up in Phoenix and having to listen to that on the radio)11) "It’s a Beautiful Day" by the group of the same name (the San Francisco sound at it’s pinnacle).