This entire study consists of repeated triplet arpeggios with long bass notes and an upper melody line in crotchets (quarter notes). These melody notes can be identified by their single upward pointing stems and they need to stand out slightly in tone and volume from the remaining triplets. For the first five bars I have indicated picking hand fingering. I like to include the thumb a lot in the triplet pattern as it is good for fluency and technical control. This approach can be used throughout the piece. On the third triplet note of bar 12 (D note, 3rd fret) add a full barre at the third fret to prepare for the next bar.