Most underrated female recording artists..


I'm always looking for female singers who make my 2 channel system seem worthwhile for all l have spent...the list includes Nora Jones, Diana Krall , Sade and many others.... there are some fabulous singers out there but not recorded very well...lm adding Bonnie Raitt to my top list..The Bonnie Raitt collection red book cd...tracks 16 and 17 are spectacular on my system...  I'f anyone could add a suggestion it would be appreciated..

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Joni Mitchell specifically Hejira. This album features Jaco Pastorious on bass - of course. Beautiful listening. Greg 

Who’s rating this to be qualified for underrating? Never heard before, poor quality, never mentioned in this thread? One of my most favored categories as is with many here. 
I will add, in honor of my Dad, sill alive at 95, was keyboard player for Big Band East on Long Island,  gets goose bumps in his limited hearing when I play, Susan Barrett, LSP-3738. She deserves a listen. Thanks