See the geometry of the guitar — notes, intervals, patterns
New: Seeing the Fretboard — how good players actually read the neck: octave shapes, why the B string is the only irregularity, triads on string sets, and what tunings really change.
Notes mode: See every note on the fretboard. Change tunings to see how notes shift.
Intervals mode: Tap any note to set it as root — the fretboard lights up with interval distances. Learn the shapes.