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'

I'm going to list two, because they are both must-haves. I don't want you to assume you won't like the 1st one because of the artist, this album is requested by my mother who is 70yrs old, my brother who is 41yrs old and my 22yr old daughter (who I used to put to bed with this playing on a stereo in her bedroom when she was 3 & 4yrs old).                                                                                                                                                                                                                                             Beastie Boys - The In Sounds from Way Out... This album is all instrumental, with the boys recording some of their olds songs as well as new ones live in the studio. It is such a chill, slow, sit and stare into a fire or an aquarium, take a Xanax and have a glass of bourbon on ice type of album. Great for background music to your living room, with or without company. This album will make everyone you know ask, “who is this? I like this!” by the 30-second mark of the 3rd song. You just can't go wrong with this album, no matter the circumstances.                                                                                                                                                                                       Portishead - Dummy... If you don't know, now you know. Just a perfect album especially if it's just you and your girl and a nicely rolled joint. 

By the way, to @audioman74 I cannot believe I just read your post about Jellyfish!! So very happy to hear that there is someone else in this world that knows how amazing they were. Bellybutton was good, but I preferred Spilt Milk... Glutton of Sympathy and Too Much Too Little To Late are just fantastic songs as well as New Mistake. Anyway, I am immediately going to check out Jason Falkner. 

@soarnatti  beat me to it.  It's a Beautiful Day is one and the others, which may not be so rare, are the white NRPS album, Nilsson Schmilsson, and Heart's Magazine, which has the best version of Harry's Without You ever (turn it UP!)


Johnny Winter - About Blues on Janus Records 1969

Compilation of some of Johnny’s early Blues tracks with some great classics.