A minor ninth

music notation
QR code

Choose audio sample set:
MSK 007 Leapfrog VCF (patch; see in online store)
MSK 009 Coiler VCF (patch; see in online store)

Equivalent chord symbols: Am7+2, C6+♭1, CM7+6, Em6+4, B♯6+♭1, F♭m6+4.

Notes in this chord: A, C, E, G, B. Integer notation: {0, 4, 7, 9, 11}.

Keys in which this chord fits with this spelling: CM, GM, Em, Am

Keys in which this chord fits with enharmonic spelling: B♯M, F♭m

Nearby chords (one less note): C6, Am+2, C+♭1, Em+4, G4+2.

Nearby chords (one more note): Am11, A9+♯2, D13-1, G13-5, Am9+♯1, Am11♯11, E+4+♯2+♯5.

Parallel chords (same structure, different root): Cm9, Dm9, Em9, Fm9, Gm9, Bm9, C♭m9, D♭m9, E♭m9, F♭m9, G♭m9, A♭m9, B♭m9, C♯m9, D♯m9, E♯m9, F♯m9, G♯m9, A♯m9, B♯m9.

Experimental fretting charts for guitar standard EADGBE tuning (change tuning or instrument):