Bass chord companion
Learn the Ab Augmented Major 7 chord on bass with chord tones, intervals, playable arpeggios, and fretboard maps.
Play these tones one at a time to outline the chord. The maps show the complete formula; the numbered exercises give an ascending path, including extensions in their written octave.
Standard four-string bass: E1 – A1 – D2 – G2. String 4 is low E; string 1 is high G. Fingers 1–4 are index through little finger; 0 is open. Use comfortable hand positions and shift where indicated.
Ab Augmented Major 7 complete chord-tone map around string 4, fret 4. Choose individual tones for a bass line.
Follow steps 1–4 below. Keep one hand position.
| Step | Degree | Note | String / fret | Finger | Position |
|---|---|---|---|---|---|
| 1 | 1 | Ab1 | 4 / 4 | 3 | Fret 2 |
| 2 | 3 | C2 | 3 / 3 | 2 | Fret 2 |
| 3 | #5 | E2 | 2 / 2 | 1 | Fret 2 |
| 4 | 7 | G2 | 2 / 5 | 4 | Fret 2 |
Ab Augmented Major 7 complete chord-tone map around string 3, fret 11. Choose individual tones for a bass line.
Follow steps 1–4 below. Keep one hand position.
| Step | Degree | Note | String / fret | Finger | Position |
|---|---|---|---|---|---|
| 1 | 1 | Ab2 | 3 / 11 | 3 | Fret 9 |
| 2 | 3 | C3 | 2 / 10 | 2 | Fret 9 |
| 3 | #5 | E3 | 1 / 9 | 1 | Fret 9 |
| 4 | 7 | G3 | 1 / 12 | 4 | Fret 9 |
Every Ab Augmented Major 7 Chord chord tone across the neck, with roots highlighted for quick orientation.
Frets 0–24. Select a position or tap a note to hear it.
Try these progressions to hear the harmony in context. On bass, outline each chord with individual target tones.
Add augmented color to the tonic; its raised fifth can move up a semitone to the third of IV.
Resolve the raised fifth down a semitone while keeping the root. This is a chromatic color change on the tonic.
| Degree | Interval | Note |
|---|---|---|
| 1 | Root | Ab |
| 3 | M3 | C |
| #5 | A5 | E |
| 7 | M7 | G |
1 – 3 – #5 – 7
Compound degrees retain their names: 9, 11, and 13 are extensions. A voicing may place their pitches in a closer register.