A flat dominant ninth, add sharp second, add flat 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♭9+♯1+♯2, A♭9+♯1+♯9, B9♭9+6+♯7, G♯9+♯1+♯2, G♯9+♯1+♯9, G♯9+♯2+♭2.

Notes in this chord: A♭, B♭♭, B, C, E♭, G♭, B♭. Integer notation: {0, 3, 6, 8, 9, 10, 11}.

Nearby chords (one less note): A♭9+♯1, A♭9+♯2, B9♭9+6, A♭m9+♯1, B9♭9+♯7, A♭+2+♯1+♯2, G♭dim+2+4+♯3.

Nearby chords (one more note): G♭13♭5+♯2, A♭11+♯1+♯2, G♭M13♭5+♯2, D13♯11♭9+♯5, A♭9+♯1+♯2+♯7.

Parallel chords (same structure, different root): C9+♯2+♭2, D9+♯2+♭2, E9+♯2+♭2, F9+♯2+♭2, G9+♯2+♭2, A9+♯2+♭2, B9+♯2+♭2, C♭9+♯2+♭2, D♭9+♯2+♭2, E♭9+♯2+♭2, F♭9+♯2+♭2, G♭9+♯2+♭2, B♭9+♯2+♭2, C♯9+♯2+♭2, D♯9+♯2+♭2, E♯9+♯2+♭2, F♯9+♯2+♭2, G♯9+♯2+♭2, A♯9+♯2+♭2, B♯9+♯2+♭2.

This chord contains too many notes to play on the 6 strings of guitar standard EADGBE tuning (change tuning or instrument).