I've only tuned into Joe resently, he plays and sings beyond his years. Not surprising as he was playing with the likes of B B King by his early teens.
His concert at the Greek in L A is awesome, great players with him in the band.
https://m.youtube.com/watch?v=-Ac96E4DgwM
I'll give a listen to Guthrie tonight, nice discription of his playing.
Cheers Richard