A flat major third, add second

music notation
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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: A♯2+7, A♭3+9, B♭2+7, G♯3+2, G♯3+9, B♭2+♯6.

Notes in this chord: A♭, B♭, C. Integer notation: {0, 8, 10}.

Keys in which this chord fits with this spelling: D♭M, E♭M, A♭M, Cm, Fm, B♭m

Keys in which this chord fits with enharmonic spelling: C♯M, D♯M, G♯M, E♯m, A♯m, B♯m

Nearby chords (one less note): A♭2, A♭3, B♭2.

Nearby chords (one more note): A♭+2, C7♯5, Fm+4, A♭4+2, A♭♭5+2, G♭♭5+2, B♭2+6+7, A♭3+2+♯1, B♭2+7+♯1.

Parallel chords (same structure, different root): C3+2, D3+2, E3+2, F3+2, G3+2, A3+2, B3+2, C♭3+2, D♭3+2, E♭3+2, F♭3+2, G♭3+2, B♭3+2, C♯3+2, D♯3+2, E♯3+2, F♯3+2, G♯3+2, A♯3+2, B♯3+2.

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