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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Dave Brubeck with Tony Bennett live at the Whitehouse 1963 for JFK. YOU ARE THERE,,SERIOUSLY!

Looks like Kevin Ayers is getting quite a bit of love. 
Try Deia vu if you can find it, another sublime album by him, music and incredible sound.
Glad to see so much recognition of Pink Martini! Great band!

Ok, let’s try again, shall we?

The Grapes of Wrath - All the Things I Wasn’t
https://www.youtube.com/watch?v=vy6sNR9CYrU