Guitar tools is a multi-platform program to help guitar players of any style. It can also be used by other fretted instruments players, as you can customize the number of strings and the tunings to use.

It's a learning tool which helps you find scales, chords, voicing, harmony and practice. It comes with a bunch of useful features and customization: right and left handed neck, metronome, favorites tunes, circle of fifths, diatonic chords and scales, printing and copying the nec. The favorites tunes "Player" can play almost any video or sound files.