Rasputin - thank you for your thoughtful and comprehensive reply.
Given your thoughts, here - attached for your further examination and understanding - a transcript (from the London manuscript) of the “menuet” under discussion.
Please note that this is not an arrangement - simply a direct representation of the notes as executed on the lute (albeit transposed to the key of C).
Some brief notes:
Bass - excepting one or two instances (marked *) the bass voice has been lifted in its entirety by one octave.
Ornaments - only one symbol occurs in the menuet i.e. “ ) “ represented here by an apostrophe. Logic leads one to deduce that this single graphic expression is employed to indicate both acciaccature and appoggiature as well as trills - according to context - a common factor being the use of the upper auxiliary.
Of special interest is the reiteration occurring in measures 1, 5, 21, 25, 35, 37 and 45.
Slurs - indicate fretting hand articulation and are a matter (on the lute) of manual expedience only.
A second kind of ornament occurs in measures 12, 19, 27 and 45. These may be described as appoggiature where both notes are sounded simultaneously. The resulting dissonance is not always resolved in a formal manner and no indication is given as to the duration of the non-harmonic tone which, in all cases, is prepared in the manner of a suspension.
Specifically - no direction to curtail the dissonance is marked, this being left to the aesthetic of the performer.
Your question regarding the graphic nomenclature i.e use of a "grace" in the typesetting of these dissonant gestures is apposite. As far as guitar arrangements are concerned the device may possibly have originated with Chiesa in his mammoth transcription of the London manuscript into standard notation which, despite a full and clear explanation, subsequent "editors" have mistakenly taken to indicate a common appoggiatura.
The result is a failure not only musically, but practically in most cases.
I hope that the above offers a little clarity and may be of some use to you - perhaps even as the basis of your own arrangement.
You do not have the required permissions to view the files attached to this post.