JI guitartab notation.

I added a coupla scans of some possible notation for my 21tone ji guitar:

http://users.rcn.com/dante.interport//justguitar.html

I really would like to do this on the computer, but I cannot find any
program that does guitar tab and allows you to substitute ratios for simple
fret numbers AND allows each one to be a different color. Anybody have any
ideas??

thanks

Dante