Watch the The Eye of God online guitar lesson by Stephen Bennett from Harp Guitar Repertoire
A ton o' pull-offs and hammer-ons here! Just take it slow and easy. When I do this, I find I have to concentrate most on the bass. If I can keep that together, the melody almost takes care of itself. Of course, that pre-supposes that you know the melody! I guess for me, if I can keep track of my bass note, the melody more automatically suggests itself to me.
Pay attention to the melody note that crosses over the measure line at 0:23.