Guitar Pro is a multitrack tablature editor for guitar, banjo and bass. Besides writing scores, Guitar Pro is a useful resource for guitarists from beginner to experienced levels to progress , compose , or simply accompany themselves.
http://www.guitar-pro.com/en/index.php
Basically It's a program that let's you create or play specially formatted tab files.
I was asking because I have a guitar pro file that has the bassline for Message of (to) Love.
