This is definitely a bluegrass and jam standard. It's most closely associated with Mr. Jimmy Martin. There's several arrangements here, and as always, you should start with the melody! These are the important notes and rhythms that give a song its identity. They are the notes we want to accent in Scruggs or melodic arrangements.
The Scruggs style arrangement is pretty standard fare. Use the difficulty slider and focus feature to really work on those slurs. You want your hammer-ons and pull-offs to sound as strong as your picked notes. Learning this Up the Neck after you learn the Scruggs arrangement. It will give you two breaks to play at a jam and perspective on interpreting a Scruggs style neck down and up the neck can help make you a really well rounded player. Both of these arrangements have some cool Scruggs and melodic licks to check out.
The Melodic Style arrangement features some melodic runs that lead into some basic melody notes. Check out those licks to get some new perspective or blend in some Scruggs style picking. The Single String arrangement has what may be some challenging fret hand work, but uses mostly thumb in the picking hand. The fret hand is doing a lot of the work here. The slides and pulls help to really give the melody a nice vocal feel and sound. The arrangement and licks are fairly simple so check it out and enjoy!