Suggest one obsure album we all should hear

MANNHEIM STEAMROLLER 
First eight "IN THE AIRE" ALBUMS.  Most can also be found as LP's

Also MANNHEIM STEAMROLLER CHRISTMAS ALBUMS - The first four releases. 

Absolutely ICONIC music. LIke nothing else that has come since. Great listening that a wide range of people all love. I own them all. 

Blues Guitar for the Homeless - Various

Ten New Songs - Leonard Cohen

@jb1
I thought that the McLaughlin Trio was CD as well. Thankfully, it was released in ’90 and reissued on 180g (German-Optimal) in 2015.

That album was a huge inspiration as I’m a bassist. Kai Eckhardt went from Berklee School of Music to landing this gig. Beautiful fretless and fretted playing. Trilok Gurtu, known as an Indian percussionist, plays trap kit, though I believe he was seated on the floor, IIRC.

Bozzio - Levin - Stevens: "Black Light Syndrome"

Harry Partch
San Diego State prof.  In particular Eight Hitchhiker Inscriptions from a Highway Railing at Barstow California
Tidal has it, album is  The World Harry Parch
He designed and built his own instruments and tonal scale