A9
A dominant ninth
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: A7+2, AM9♭7, G6♭5+2, G6♭5+9, G9♭5♭7, B11♯5-3.
Notes in this chord: A, C♯, E, G, B. Integer notation: {1, 4, 7, 9, 11}.
Keys in which this chord fits with this spelling: DM, Bm
Keys in which this chord fits with enharmonic spelling: C♭m
Nearby chords (one less note): A7, A+2, A9-5, Em+4, G6♭5.
Nearby chords (one more note): A11, A9+6, A9+♯1, A9+♯2, A9+♯5, A9+♯7, B11♯5.
Parallel chords (same structure, different root): C9, D9, E9, F9, G9, B9, C♭9, D♭9, E♭9, F♭9, G♭9, A♭9, B♭9, C♯9, D♯9, E♯9, F♯9, G♯9, A♯9, B♯9.
Experimental fretting charts for guitar standard EADGBE tuning (change tuning or instrument):
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