Chord & FretExtended
symbols, sound and when to use them
Ninth, eleventh and thirteenth stack thirds above the seventh, building dense, colourful chords. They’re the vocabulary of jazz, bossa and R&B — more colour and more tension, always under control.
Symbols in this family · 10 qualities
Every symbol opens that chord’s own page: what it is, how it sounds, when to use it and its diagram on all four instruments.
Every position on the neck — in the app
Here the explanation of each chord in the family stays open, with one diagram per instrument. The app is where the same harmony becomes the whole neck: every position, the inversions and the alternate tunings, with audio and no connection needed.
Get the whole library in the app — free to start →