F flat dominant eleventh, flat ninth, add flat root

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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: B13♯9♭5, C♭13♯9♭5, E11♭9+♯7, E11♭9+♭1, B11♯9♭5+6, F♭11♭9+♯7.

Notes in this chord: F♭♭, F♭, A♭, C♭, E♭♭, G♭♭, B♭♭. Integer notation: {2, 3, 4, 5, 8, 9, 11}.

Nearby chords (one less note): E11♭9, EM11♭9, B11♯9♭5, E7+4+♯7, E9♭9+♯7, B13♯9♭5-1, F13♯9♯11-5.

Nearby chords (one more note): B13♯9+♯4, B13♭5+♯2, CM13♯5+♯2, B13♯5♯9+♯4, F13♯9♭5+♯7.

Parallel chords (same structure, different root): C11♭9+♭1, D11♭9+♭1, E11♭9+♭1, F11♭9+♭1, G11♭9+♭1, A11♭9+♭1, B11♭9+♭1, C♭11♭9+♭1, D♭11♭9+♭1, E♭11♭9+♭1, G♭11♭9+♭1, A♭11♭9+♭1, B♭11♭9+♭1, C♯11♭9+♭1, D♯11♭9+♭1, E♯11♭9+♭1, F♯11♭9+♭1, G♯11♭9+♭1, A♯11♭9+♭1, B♯11♭9+♭1.

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