The Ultimate Scale, Chord and Arpeggio Reference for Guitarists. Guitar Power is an interactive learning system. Quickly and easily use scales, chords and arpeggios. Any style or level - learn the secrets of the pros and play like your guitar heroes. Guitar Power will teach you: 3000+ chord voicings, 500+ scales, 550+ arpeggios, triads in any inversion, notes on the fretboard, how to name your own chords, which scales to use when soloing. Features: * All chords fully fingered * Displays formulas and notes * Full fingerboard or single position display * Suitable for all levels of guitarist beginner to professional * Right or left handed * Free 30-day trial.