Great country recording

Go for LPs, Emmylou Harris. I test my carts and styli using Cimmaron. 

Emmylou Harris was the most sought after artist by all the great artists of her time! Many greats appear on her albums, playing instruments and as accompanying vocals and backups/duets. 

Instrumental quality and arrangements were the best in the business! 

Alison Krauss is a no brainer and she performs with Jerry Douglass on numerous albums 
To date she's won 27 Grammys which I think is the most for any performer. I consider her latest album " Windy City to be one of her best. I saw her in concert recently and it should be against the law for one person to have that much talent!
Not only does she have a amazing Anglic voice but shes also a master of the violin 
A close second would be Ronda Vincent 

Lots of fantastic music here. Just don't miss the great great Guy Clarke. I'm sure you'll find some dobro from Darrell Scott in his songs. Try finding Keepers (live recording).

Blue Country Heart, by Jorma Kaukonen. Some great contemporary acoustic players. Check it out. 

 Willie Nelson  Milk Cow Blues
Steve Earle  Train a Coming
 EmmyLou Harris  At the Ryman