Fachords Guitar Scale Generator is an online guitar scale generator with sound and moving patterns. Fachords Scale Generator is useful for rock, blues, jazz, heavy metal guitarists. Select musical key and chords you want to practice on. Select a scale or arpeggios. Set pattern position on the fretboard and modify the shape (four frets boxes, 3 notes per string, 4 notes per string, and so on). Play scales and arpeggios with backing tracks, and set metronome speed.