Vextab2lily is a project mainly written in Ruby, it's free.
reads VexTab tablature and produces LilyPond source
vextab2lily
Converter of VexTab tablatures to LilyPond source.
VexTab: http://vexflow.com/vextab/ LilyPond: http://lilypond.org
Pre-pre-alpha: isn't really usable yet... :( Step by step I'm going through the "VexTab Tutorial" at http://vexflow.com/vextab/tutorial.html and extending functionality of the converter to be able to handle correctly more and more examples.
Usage:
You will need some Ruby interpreter ( http://ruby-lang.org ) to run vextab2lily.
Script vextab2lily processes VexTab file given as a command-line argument and prints LilyPond source to standard output.
$ ruby vextab2lily.rb my_tablature_file.vextab > my_tablature_file.ly $ lilypond my_tablature_file.ly
For available options type
$ ruby vextab2lily.rb --help