Popular fretboard positions with fingering suggestions
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Amin/maj9/B is the A minor major 9 / B (4th inversion) guitar chord with B in the bass. It uses the notes A, C, E, G♯, and B and the interval formula 1-♭3-5-7-9.
The A minor major 9 minor major 9 chord blends the haunting tension of the minor major 7th with the romantic ninth B, resulting in a complex, emotional palette. It conveys a sense of mystery and introspection, suitable for cinematic or jazz compositions. With B in the bass, this voicing functions as the 4th inversion of A minor major 9.
Also written as Amin/maj9 and AmM9/B.
These are quick-start shapes for players who want the answer first and the deeper theory second.
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Each note below shows how the chord is built from its root. This is the theory layer underneath the fretboard shapes.
The root anchors the chord and defines its tonal center.
This note supplies the minor color and gives the chord its darker emotional pull.
The fifth reinforces stability and gives the chord its strong harmonic frame.
The major seventh adds a smooth, lush tension close to the root.
The ninth opens the chord up and adds a modern, spacious color.
Every shape is shown with its diagram and exact fingering instructions.
Amin/maj9/B uses the notes A, C, E, G♯, and B. Its interval formula is 1-♭3-5-7-9.
Amin/maj9/B is also written as Amin/maj9 and AmM9/B.
Place the 1st finger on the 5th fret of the 1st string, 2nd string, and 3rd string in barre position. Place the 2nd finger on the 6th fret of the 4th string. Place the 3rd finger on the 7th fret of the 6th string. Let the fifth string ring open. Strum from the 6th string down.
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