A simple, effective tool for all guitarists both acoustic and electric, from the beginner to the seasoned pro Use this tool to master the neck of your guitar whether you're a 6-string , 7-string, or 8-string player Compose melodies and chord progressions in one of the 23 different default tunings, or even create your own custom tunings to use. Get a masterful handle on chords, scales and modes across your across 24 fret fretboard