Am9 7-string guitar chord

How to play Am9 on 7-string guitar

The most common way, the first shape above: your index finger on the D string at the 5th fret, your middle finger on the G string at the 5th fret, your ring finger on the high B string at the 5th fret and your little finger on the high E string at the 7th fret. Let the A string ring open. Don’t play the low B and low E strings.

From the low B string x x 0 5 5 5 7 (x: not played, 0: open)

What notes are in Am9?

Am9, A minor ninth, is A, C, E, G and B: the root (A), the minor third (C), the perfect fifth (E), the minor seventh (G) and the ninth (B). Its formula is 1 ♭3 5 ♭7 9.