There are seven sections, each divided into two sub-sections of 8 and 10 bars. The piece is mostly in 3/4 time, but each sub-section begins with a bar in 2/4 time, so it is easily spotted.
The whole piece approaches the "lute-style" or, I suppose, "vihuela-style" of writing. Unlike other Sanz pieces, there are no obviously campanella or strummed passages, and no slurs are specified. Even the abecedario N9 chord (A maj on the uke) in bar 80 is not shown with a strum indicator.
After the statement of the melody in §A, §§B, F and G are composed of (almost Renaissance?) divisions (diferencias) in the form of scale segments.
In the transcription I have probably been optimistic in specifying the lengths of some of the fingered notes: I just hold them down for as long as I can (tenuto). This gives a hint of the campanella sound.
The graces have been interpreted following James Tyler's recommendations in A guide to playing the Baroque guitar, summarised here. Incidentally, the trills are generally played as inverted mordents, but if occurring at the end of a section should be prolonged: I have indicated this by an additional "tr" after the mordent. Vibratos, indicated by “vib”, were apparently at this time used as an ornament, and not used throughout a piece as we might nowadays.
You can find the transcriptions here: