Tunefox
The Clever Way to Learn & Practice Bluegrass Music
This melody is beautiful, but it's not exactly easy! You may need to use your Tunefox tools to assist your practice session. Use the Focus feature to focus on and learn a measure or section at a time. After you get used to the fret hand maneuvers, use the tempo slider to practice at slow speeds and work on playing "in time". The Difficulty slider will dial out some extra notes to make the melody a bit easier to play.
If you plan on playing with others, you'll need to get in the common jam/performance key of D. To do that, just put your capo on the second fret. After you get comfortable with the basic melody, check out a few of the licks.