A♭4+2

A flat major fourth, add second

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MSK 007 Leapfrog VCF (patch; see in online store)
MSK 009 Coiler VCF (patch; see in online store)

Equivalent chord symbols: A♭4+9, G♯4+2, G♯4+9, A♯2+7+♯2, A♭3+2+♯3, B♭2+7+♯2.

Notes in this chord: A♭, B♭, C, D♭. Integer notation: {0, 1, 8, 10}.

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

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

Nearby chords (one less note): A♭4, A♭3+2, D♭6-3, B♭2+♯2.

Nearby chords (one more note): B♭m9, A♭+2+4, B♭m9♭5, G♭+2+♯4, A♭4+2+♯1, A♭4+2+♯2, A♭♭5+2+4, Gdim+4+♯1.

Parallel chords (same structure, different root): C4+2, D4+2, E4+2, F4+2, G4+2, A4+2, B4+2, C♭4+2, D♭4+2, E♭4+2, F♭4+2, G♭4+2, B♭4+2, C♯4+2, D♯4+2, E♯4+2, F♯4+2, G♯4+2, A♯4+2, B♯4+2.

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

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