I've never seen Rich mentioned here before so I thought I'd share a couple of his pieces that I enjoy a lot.   He plays with a Southwestern flavor and seems to have been heavily influenced by Mexican music.  He's also got a record he did with Norman Blake years ago.  Great stuff. 

'Under Fiesta Stars'
https://www.youtube.com/watch?v=LAYWa8m0oGs&list=PLxoA-SDB8Bpagg0uY_9WUzRXygVfomn9h&index=36

'Santa Rosa Serenade'
https://www.youtube.com/watch?v=J35GxEIF2f8&list=PLxoA-SDB8Bpagg0uY_9WUzRXygVfomn9h&index=4