The augmented triad on bass, in all 12 keys
Two major 3rds stacked. It divides the octave evenly, so the same shape repeats every four frets. Also called: 1 · 3 · ♯5.
Formula: 1 3 ♯5. Interval steps: M3 M3 M3. Use it over: Augmented chords and passing chords between I and IV.
Notes in every key
Printable chart of all 12 keys: PDF · print page · every pattern in one PDF
Where the root sits on the neck
| Key | E string | A string | B string (5-string) |
|---|---|---|---|
| C | 8 | 3 | 1 |
| G | 3 | 10 | 8 |
| D | 10 | 5 | 3 |
| A | 5 | 0 | 10 |
| E | 0 | 7 | 5 |
| B | 7 | 2 | 0 |
| G♭ | 2 | 9 | 7 |
| D♭ | 9 | 4 | 2 |
| A♭ | 4 | 11 | 9 |
| E♭ | 11 | 6 | 4 |
| B♭ | 6 | 1 | 11 |
| F | 1 | 8 | 6 |
Practice tip
Slide the whole shape up four frets and you get the same three notes again.