My file-naming conventions are not entirely self-consistent, but mostly the following tags show the content of a given file:
O = ornamented
version (sometimes might mean "original").
S = score -- i.e., all parts.
T = L = tablature
V = voice or violin -- in any case, the top part.
B = Bass line
P, P1, P2, etc. = performance versions with additional notations, different fingerings, that I have used in a particular performance.
3, 4, 5, etc. = 3, 4, 5 etc. part mensural scores.
These can be combined in various ways. A file named "my_music_OVB.ft3", for instance, would mean ornamented version of the top line and bass.
Sometimes A, Bb, C, D, E, F, G, etc., refer to versions of the piece in these keys, usually transposed from the original.
Other conventions within Fronimo files, for those who wish to contribute pieces to this collection, are given here.
Within many pieces, I have provided what I think are good fingerings. My left-hand fingerings are little, guitar-style, numbers to the left of the note they apply to.
For barring, I use "B" + the roman numeral of the fret to bar and a dashed line to indicate the extent of the bar (like BIV - - - - ). Without the "B" the fingering indicates the position to play at without barring (this is a rare usage).
I use a left bracket to show two strings played by one finger. I have fairly fat fingers, so those with more tapered fingers might have to make these chords in a different way.
Another of my unconventional usages is to place a line between two notes following each other, played by the same finger, whether the same note or another note on the same string. I find this very helpful in minimizing motion of the left hand.
Hopefully, this will not be confused with the curved slurs indicating held notes, à la Nicolas Vallet.
Right hand fingerings are pretty standard except for a couple of twists. I normally don't mark the notes played by the thumb except when the thumb transitions to the next higher course (especially in archlute playing). So a thumb marking under a bass course usually means the next higher string is coming up and therefore serves as a reminder to keep the thumb in place.
Otherwise, when there is a chord with two or more notes played by the right hand fingers, I place a dot or two dots under the bottom most of these, and then, as there is no room to put dots under the other notes, I put them alongside instead.
I realize that many of these notations are non-standard, but they have served me well over the years.