eTktab 2.1
Freeware

eTktab is an ascii tablature editor for guitar and bass guitar.
The program emphasizes fast entry with 30 fretboard positions 
available through one keypress, mouse-driven cut and paste,
and two insertion modes for chords or solos.  This software
allows custom guitar tunings, note modifiers (such as hammer-on)
and runs on multiple platforms.

Requires Tcl/Tk 8.

http://etktab.sourceforge.net