With Guitar Library you can view and hear a database of 35 different guitar chords. Each chord has 4 different versions. You can tune your guitar by ear using 16 tuning options. You can view 62 different scales in piano and guitar fretboard view. Use the Learn Notes game to practice and learn the notes on a treble staff or guitar fretboard. Guitar Library also includes a Grand staff chart, Key signature information, a Circle of Fifths chart, Common chord progressions chart, transposition chart and a guitar fretboard showing all the note names based on a standard tuning.