Explore scales · Guitar
A♭ acoustic scale on guitar
A♭ acoustic uses A♭, B♭, C, D, E♭, F, G♭. Box 1 places the raised fourth on the second string.
How it is built
Formula 1, 2, 3, ♯4, 5, 6, ♭7
How do you play the A♭ acoustic scale on guitar?
A♭ acoustic in box 1 runs from fret 1 to fret 4, 16 notes across 6 strings, from F on the low E string at fret 1 up to A♭ on the high e string at fret 4. The root falls on the low E string at fret 4, the G string at fret 1 and the high e string at fret 4.
Every note in this box, string by string
| String | Frets | Notes |
|---|---|---|
| 6 (E) | 1, 2, 4 | F, G♭, A♭ |
| 5 (A) | 1, 3 | B♭, C |
| 4 (D) | 1, 3, 4 | E♭, F, G♭ |
| 3 (G) | 1, 3 | A♭, B♭ |
| 2 (B) | 1, 3, 4 | C, D, E♭ |
| 1 (e) | 1, 2, 4 | F, G♭, A♭ |
Box 2 · frets 4–7
A♭ acoustic in box 2 runs from fret 4 to fret 7, 13 notes across 6 strings, from A♭ on the low E string at fret 4 up to B♭ on the high e string at fret 6. The root falls on the low E string at fret 4, the D string at fret 6 and the high e string at fret 4.
Every note in this box, string by string
| String | Frets | Notes |
|---|---|---|
| 6 (E) | 4, 6 | A♭, B♭ |
| 5 (A) | 5, 6 | D, E♭ |
| 4 (D) | 4, 6 | G♭, A♭ |
| 3 (G) | 5, 7 | C, D |
| 2 (B) | 4, 6, 7 | E♭, F, G♭ |
| 1 (e) | 4, 6 | A♭, B♭ |
Box 3 · frets 6–9
A♭ acoustic in box 3 runs from fret 6 to fret 9, 14 notes across 6 strings, from B♭ on the low E string at fret 6 up to C on the high e string at fret 8. The root falls on the D string at fret 6 and the B string at fret 9.
Every note in this box, string by string
| String | Frets | Notes |
|---|---|---|
| 6 (E) | 6, 8 | B♭, C |
| 5 (A) | 6, 8, 9 | E♭, F, G♭ |
| 4 (D) | 6, 8 | A♭, B♭ |
| 3 (G) | 7, 8 | D, E♭ |
| 2 (B) | 6, 7, 9 | F, G♭, A♭ |
| 1 (e) | 6, 8 | B♭, C |
Box 4 · frets 8–11
A♭ acoustic in box 4 runs from fret 8 to fret 11, 16 notes across 6 strings, from C on the low E string at fret 8 up to E♭ on the high e string at fret 11. The root falls on the A string at fret 11 and the B string at fret 9.
Every note in this box, string by string
| String | Frets | Notes |
|---|---|---|
| 6 (E) | 8, 10, 11 | C, D, E♭ |
| 5 (A) | 8, 9, 11 | F, G♭, A♭ |
| 4 (D) | 8, 10 | B♭, C |
| 3 (G) | 8, 10, 11 | E♭, F, G♭ |
| 2 (B) | 9, 11 | A♭, B♭ |
| 1 (e) | 8, 10, 11 | C, D, E♭ |
Box 5 · frets 10–13
A♭ acoustic in box 5 runs from fret 10 to fret 13, 16 notes across 6 strings, from D on the low E string at fret 10 up to F on the high e string at fret 13. The root falls on the A string at fret 11 and the G string at fret 13.
Every note in this box, string by string
| String | Frets | Notes |
|---|---|---|
| 6 (E) | 10, 11, 13 | D, E♭, F |
| 5 (A) | 11, 13 | A♭, B♭ |
| 4 (D) | 10, 12, 13 | C, D, E♭ |
| 3 (G) | 10, 11, 13 | F, G♭, A♭ |
| 2 (B) | 11, 13 | B♭, C |
| 1 (e) | 10, 11, 13 | D, E♭, F |
Why it sounds like that
A♭ acoustic raises the fourth of A♭ mixolydian from D♭ to D. The scale is built 1, 2, 3, ♯4, 5, 6, ♭7. This creates a Lydian Dominant sound, also called Overtone or Lydian ♭7. Compare it with A♭ mixolydian to hear the altered fourth.
When to use it
Use A♭ acoustic over A♭7, A♭ major, or A♭ 5th chords in rock, fusion, and jazz. The ♯4 adds tension over dominant chords. Try it over A♭ major or A♭ 5th progressions.
Which position to practise
Practise Box 1 first. It keeps the root on the sixth string and covers frets 1–4 for quick access to the ♯4.
Common questions
What notes are in A♭ acoustic?
A♭, B♭, C, D, E♭, F, G♭. The raised fourth is D and the flat seventh is G♭. It is also spelled G♯ in enharmonic notation for the same sounding root.
Which chords fit A♭ acoustic?
A♭7, A♭ major, and A♭ 5th work well. The scale also fits over B♭ major and E♭ minor in progressions.
How is A♭ acoustic different from A♭ mixolydian?
A♭ acoustic has a D instead of D♭. That raised fourth creates the Lydian Dominant sound.