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Bass chord companion

A Major 9 Chord

Learn the A Major 9 chord on bass with chord tones, intervals, and interactive fretboard shapes.

1A3C#5E7G#9B

Bass chord-tone boxes

Bass lines usually imply this chord with arpeggios and target tones. Start with root-on-E and root-on-A boxes.

Root on E string

Amaj9 chord tones around the E-string root.

A Major 9th Root on E string bass chord tonesAmaj9 chord tones around the E-string root.EADG45678719357193

Root on A string

Amaj9 chord tones around the A-string root.

A Major 9th Root on A string bass chord tonesAmaj9 chord tones around the A-string root.EADG01234571935719

Full fretboard map

Every A Major 9 Chord chord tone across the neck, with roots highlighted for quick orientation.

Interactive

Common progressions using A Major 9

Try these progressions to hear the chord in context instead of treating it as an isolated shape.

Chord Tones

DegreeIntervalNote
1RA
33C#
55E
77G#
92B

Compatible Scales

Formula

R – 3 – 5 – 7 – 2

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