French tablature?

[Alasdair McAndrew]

The tablature examples given (section 2.4.1) show Italian lute 
tablature: frets given as numbers, and written on the line. 
However, French tablature uses letters between lines, as shown 
here:

http://sologuitarist.net/score/BachFugueFrenchTab.jpg

Note durations are given above the staff, with only changes given. 
A variation on this was for music for the bass viol in different 
tunings (called playing "lyra way"; sometimes the viol thus played 
was called a "lyra viol") has the notes given with heads, not 
stems alone:

http://atelierphilidor.com/contents/media/l_bi128%20page2_.png

Is it likely that Lilypond will provide such tablature at some 
stage?  Currently, if I want to typeset tablature, I need to use 
different software.

Thanks,
Alasdair

--
Alasdair McAndrew
http://numbersandshapes.net