A♭m4+9

A flat minor fourth, add ninth

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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♭m4+2, G♯m4+2, G♯m4+9, B2+6+♯7, A♭dim♭5+2, G♯dim♭5+2.

Notes in this chord: A♭, C♭, D♭, B♭. Integer notation: {1, 8, 10, 11}.

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

Keys in which this chord fits with enharmonic spelling: BM, F♯M, D♯m, G♯m

Nearby chords (one less note): A♭m4, B2+♯7, D♭6-3, A♭2+♯2.

Nearby chords (one more note): D♭7+6, E6+♯4, G♭+2+4, A♭m+2+4, A♭4+2+♯2, A♭dim+2+4, A♭m4+2+♯1, Gdim+♯1+♯3.

Parallel chords (same structure, different root): Cm4+9, Dm4+9, Em4+9, Fm4+9, Gm4+9, Am4+9, Bm4+9, C♭m4+9, D♭m4+9, E♭m4+9, F♭m4+9, G♭m4+9, B♭m4+9, C♯m4+9, D♯m4+9, E♯m4+9, F♯m4+9, G♯m4+9, A♯m4+9, B♯m4+9.

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

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