Billy Strings! Go catch a live show. This guy is incredible. Great band too. Check out this transcription to learn one of his breaks on this tune. He recorded it at almost 140 bpm! We don't have to play this arrangement that fast, but it's good to have goals! This was his first break on the recording, so the melody is very pronounced. Billy learned a large amount of his Bluegrass vocabulary from his hero Doc Watson, and that is evident in his playing here. Go buy some of their albums and you will definitely hear the similarities.