The famous sonatas for harpsichord by Domenico Scarlatti, have often been interpreted with the classical guitar. This “brilliant” Sonata in A major K. 322, is a piece of some difficulty, and you can see how John Williams plays it, making it look very simple. Here is his greatness. I also found this version of Kyuhee Park, with expansive sound, to feel the difference with that of Williams. You can find even then the tab, and some useful links.