Choose which chord tones are built off the clicked root note. Intervals are equal-tempered offsets added to the exact root pitch.
Tuning Preset
Pick a preset to load string count and tuning. Pick Custom to edit freely below.
Strings
Click or tap the open-string area near the nut to play the open string. In strum mode, it plays all open strings. In chord mode, it builds the chord from the open string root.
Frets
Load replaces current frets. Append adds the next N steps beyond the highest existing fret.
Each fret row includes a TET reset button that snaps that single fret back to the mathematically true position for the current TET system.
Fretboard Ready
Each cell shows NOTE on top and deviation in cents below. Playback uses the exact pitch: nearest note center plus or minus the displayed cents. Polyphonic Strum plays all strings at the clicked fret. Chord mode builds a chord from the clicked root and can play it together or arpeggiated.