As a female vocal, bluegrass, and folk head myself, my quest for reference sounding recordings becomes even more difficult as I prefer live stuff to studio cuts. My small smathering of suggestions are the following:
A 5 year old band from No.NJ named Railroad Earth just put out a killer live disc called Elko, great sound quality for a live disc. Any of the 3 Garcia/Grisman discs(Pizza Tapes, Been All Around this World, and Garcia Grisman Rice) from Acoustic Disc are of exceptional quality, the put you right in the living room with these guys, and most of the Natalie Merchant stuff is usually great also.
A 5 year old band from No.NJ named Railroad Earth just put out a killer live disc called Elko, great sound quality for a live disc. Any of the 3 Garcia/Grisman discs(Pizza Tapes, Been All Around this World, and Garcia Grisman Rice) from Acoustic Disc are of exceptional quality, the put you right in the living room with these guys, and most of the Natalie Merchant stuff is usually great also.