I was just at a Nickel Creek concert last night, and their new CD sounds amazing on my Auteur Classics! I only imagine how good it would sound on a pair of Atriums, Sara Watkins’s voice being a standout, but all three are fantastic singers.
OK, here goes, no special order
Athena, Breathe with Me
Loreena McKennitt; everything. Early works are more folk style, later more celtic/new age, all recommended
Inge Marie Gundersen
Zoe Lewis; not well known but I like most things, particularly 'Fishbone Wishbone Funnybone', unusual as you'd expect but strong musically, get it!
Cheryl Bentyne; I really like her solo work more than with MT
Sinne Eeg
Jane Monheit; not keen on all she's done but I love 'Taking a chance on love'
Rita Connolly; Irish, a touch on the folk style but do try Granuaile - and read the book, Grace O'Malley was fascinating
Sophie Zelmani
Margriet Sjoerdsma, Tribute to Eva Cassidy
Frederica von Stade; classical of course but try her Mozart, mmmm; this has converted a friend who didn't like classical vocal work and ended up getting all her LPs!
Sarah Jarosz
Tierney Sutton; all good, but After Blue stands out for me
Lucy Ann Polk; OK, perhaps a bit dated but class, and good music doesn't date.
Rhiannon Giddens; anything, it's all pure class
Silje Nergaard
Laurie Allyn, Paradise; a definite favourite of mine.
I have tried to include obscure things you might miss. I have many other suggestions, enough for now.
Some great suggestions in this thread, I'll look them up; thanks!