A rich, nocturnal minor 9th anchored by the open A.
Notes: A – E – B – C – G · Formula: 1 – ♭3 – 5 – ♭7 – 9
Load A Minor 9 (Am9) onto an interactive fretboard, hear every note, and build it into a progression.
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A A Minor 9 (Am9) chord contains the notes A, E, B, C, G. It is built from the minor 9th formula 1 - ♭3 - 5 - ♭7 - 9, with A as the root.
Am9 is an Am7 with one extra note: the 9th (B). Am7 (A-C-E-G) already sounds smooth and jazzy; adding the 9th makes it richer and more atmospheric still. The 9th is what gives neo-soul and jazz their signature lush minor sound, which is why Am9 is often chosen over a plain Am7.