Charango Fretboard Explorer

An interactive note map of the Charango's neck in GCEAE: tap a note to light it on every course and fret, and watch the lattice this tuning builds — GCEAE — five courses whose open notes already spell A minor seventh, with a twin E an octave apart at both ends of the hand.

Light the open courses first: their pitch classes already spell A minor seventh, and courses 3 and 5 both sound E — one octave apart, the twin at both ends of the hand. Then light a single pitch and watch how many places it lives across five courses instead of three or four — a wider lattice than most of this network's fretted satellites.