Transcribed & edited for harp by Laura Sherman, Prelude, Fugue and Allegro, BWV 998 is also a good one to begin with. The arpeggios in the first movement are perfect for the harp and the second movement Fugue is thrilling to play. The Allegro is especially fun because of the tempo and the chance to experiment with playing on different areas of the strings (not just pdlt), especially during the repeats.