Explore scales · Bass
A♭ major pentatonic scale on bass guitar
A♭ major pentatonic contains A♭, B♭, C, E♭, and F. Box 1 places the root on string 4, fret 4 and string 1, fret 1.
How it is built
Formula 1, 2, 3, 5, 6
How do you play the A♭ major pentatonic scale on bass?
A♭ major pentatonic in box 1 runs from fret 1 to fret 4, 8 notes across 4 strings, from F on the E string at fret 1 up to B♭ on the G string at fret 3. The root falls on the E string at fret 4 and the G string at fret 1.
Every note in this box, string by string
| String | Frets | Notes |
|---|---|---|
| 4 (E) | 1, 4 | F, A♭ |
| 3 (A) | 1, 3 | B♭, C |
| 2 (D) | 1, 3 | E♭, F |
| 1 (G) | 1, 3 | A♭, B♭ |
Box 4 · frets 8–11
A♭ major pentatonic in box 4 runs from fret 8 to fret 11, 8 notes across 4 strings, from C on the E string at fret 8 up to F on the G string at fret 10. The root falls on the A string at fret 11.
Every note in this box, string by string
| String | Frets | Notes |
|---|---|---|
| 4 (E) | 8, 11 | C, E♭ |
| 3 (A) | 8, 11 | F, A♭ |
| 2 (D) | 8, 10 | B♭, C |
| 1 (G) | 8, 10 | E♭, F |
Why it sounds like that
A♭ major pentatonic drops the fourth and seventh degrees from A♭ major, leaving 1, 2, 3, 5, and 6. The intervals are 0, 2, 4, 7, and 9 semitones, producing steps of W, W, 1½, W, 1½. This five-note structure avoids half-step dissonance.
When to use it
A♭ major pentatonic fits A♭ major and A♭ 5th chords. It works over A♭ major progressions and is common in jazz and R&B bass lines.
Which position to practise
Practise Box 1 first. It keeps the root under your first finger on string 4, fret 4 and covers frets 1–4.
Common questions
What notes are in A♭ major pentatonic?
A♭ major pentatonic contains A♭, B♭, C, E♭, and F. These are the 1st, 2nd, 3rd, 5th, and 6th degrees of A♭ major. The scale omits the 4th and 7th degrees. It is also spelled G♯ in enharmonic notation for the same sounding root.
Which chords does A♭ major pentatonic fit?
A♭ major pentatonic fits A♭ major and A♭ 5th chords. It also works over A♭ major progressions. Use it for bass lines in major keys.
How do I practise A♭ major pentatonic?
Start with Box 1 and play the notes ascending and descending. Use a metronome at 60 bpm and gradually increase speed. Connect to Box 2 by shifting to the next root position.