Hello,
I've been working a little bit on a bundle for writing guitar (and other) tablature. There's syntax highlighting, there's a "blank staff" snippet-like command which will respond to a tuning you set for the whole document, and there are keybindings to insert and delete blank spaces and bar lines for a whole column, and to fill in blank space.
Here's a movie: http://www.mdaines.com/system/tablature.mov
It goes a little slow since I'm still experimenting with the key bindings. Your input is welcome re: that and anything else!
There's a zip archive of the bundle here: http://www.mdaines.com/ system/tablature.zip
Presumably it'll go into a source repository or something soon.
-- Michael Daines http://www.mdaines.com