Fretboard
Use Frets and Regenerate to rebuild the board (12–36 frets). Show note names toggles labels; you can still pin notes while labels are hidden.
Click a note circle on the fretboard to pin or unpin every occurrence of that pitch on the board. Pinned notes stay visible (yellow) and can show interval names. Clear pins removes all pins.
Chord
Type a chord and press Enter to highlight its tones on the fretboard. You can enter several chords separated by commas (e.g. C, Am, G7); the union of their notes is pinned, and the root of the last chord becomes the active root for intervals and scales.
Jazz-style spellings like G-7 (minor seventh) are accepted. Invalid symbols show next to the chord field.
Key
Enter a key such as C, F#, or Bb and press Enter. This sets whether note names prefer sharps or flats on the fretboard and chromatic row, and sets the default scale root when the chromatic row does not override it.
Scale
Choose a scale or mode from the menu to outline those scale degrees in blue on the fretboard and chromatic strip, relative to the active root (chromatic selection if any, otherwise the key).
Chromatic scale
Click a note to select it as the root for interval view and scale calculations (red highlight). Click again to clear the selection. Show intervals switches the chromatic row and visible fretboard labels between note names and intervals (R, 3, 5, …) from that root.
Recent chords
Chords you enter are listed as pills. Click a pill to load it and pin it again. Use × on a pill to remove it from the list.