Scale Wizard is a guitar-scale library that acts as a companion to the Chordmaster App, a guitar-chord library, for iPhone and iTouch.

Scale Wizard features more than 10,000 scale, mode and arpeggio shapes, a left-handed view and alternate tunings. Guitarists can swipe a finger up and down the fret board to hear ascending and descending scales, or tap the screen to hear individual notes played by a professional guitarist. Other features include multiple positions of each scale, mode and arpeggio, along with adjustable playback speed.

Available now, users can log into their Apple App Store account and search Planet Waves to download Scale Wizard and Chordmaster for $1.99 each.

Find out more information about Scale Wizard.