Great music few are aware of. Any genre.

Wow, that's a lot. I'm going to limit this to recent albums I've acquired that were unknown to me or that I missed along the way.
Enzo Enzo - Ariola BOPL 1004 - This sort of fits into French cafe music. My daughter told me she likes French Cafe music, but I'm keeping this copy.
The Alternate Blues - Analogue Productions APR 3010 - Heavy hitters, improvisation, great sound and music.
Heartworn Highways - Diverse Records 016DLP - Documentary recordings from 1975 by the Classics playing their Classics. Great sound, but you have to forgive the vinyl a little.
Ben Alison - Newvelle Records NV005LP - One from a box set. Expensive recordings and unique approach to making/marketing music. Great new music and sound, regardless.
Kenny

@inna 
@chazark123
@toddverone

Happy for the positive responses.  Glad for the opportunity to give these artists a little bit more exposure.  

Chaz - Don't know about availability of all those in vinyl, but limited vinyl production is not unheard of from some of these small labels; e.g., Kranky, Ghostly, n5md.  Suggest you check discogs to see how they were released.  I've had decent success buying on the Discogs marketplace (a little vinyl; just look for M/NM and a seller w/100% rating).  As far as more, like Todd said, I don't want to load up this thread.  Many of these "discoveries" were a result of visiting a really wonderful record review site called, "A Closer Listen - A Home for Instrumental & Experimental Music".  Richard Allen should get some kind of cultural achievement award for what he has put together there.  Hope you and others will check it out.  

https://acloserlisten.com

Todd - "A Strangely Isolated Place" is an interesting name for an electronic/ambient label being (as you probably know) the name of a well-regarded electronica recording by Ulrich Schnauss.   I look forward to checking out Lav & Perl's, "A State of Becoming".  I like ambient as well but for active listening prefer compositions that are "going somewhere", as in Helios' "Unleft".  

There used to be an "ambient favorites" thread here on A'gon.  Would love to see that resurrected and expanded to include electronica and "modern composition". 

Blake Mills  "Heigh-Ho" (lp).

Tanita Tikaram  "Closer to the People" (lp)

Try The Umbersun by Elend. That's not your usual...whatever.