How to Use Fingerboard Calculator
The Fingerboard Calculator generates a note map for standard guitar or bass tuning. It lays out open strings and frets so you can locate notes across the neck.
- Choose six-string guitar or four-string bass. The calculator loads standard tuning for the selected instrument.
- Enter the number of frets to display, up to the browser-friendly limit used by the tool.
- Read each row as one string. The first note is the open string, followed by notes at each fret.
- Use the map to find repeated notes, octave shapes, scale targets, or chord tones across the neck.
Formula & Theory - Fingerboard Calculator
The Fingerboard Calculator uses the following formula or calculation model:
Fret note = open string note shifted upward by fret number semitones
Guitar tuning = E A D G B E
Bass tuning = E A D GFretted instruments move in semitone steps. Starting from an open-string note, each fret raises the pitch class by one semitone. After 12 frets the note names repeat one octave higher, which makes the fingerboard a repeating chromatic grid.
Assumptions and Limits
The calculator uses standard tuning and pitch-class names. Alternate tunings, capo positions, microtonal frets, and octave labels are not modeled.
Use Cases for Fingerboard Calculator
Specific use cases include:
- Memorize notes on guitar or bass.
- Find all positions for a chord tone during improvisation.
- Teach how standard tuning maps across strings and frets.
- Plan fingerings before practicing a riff or bass line.