F dominant eleventh, add sharp root, 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: C13♯9+♯4, B♯13♯9+♯4, C13♯9+♯11, F11+♯1+♯7, B♯13♯9+♯11, E♯11+♯1+♯7.

Notes in this chord: F♭, F, F♯, A, C, E♭, G, B♭. Integer notation: {0, 3, 4, 5, 6, 7, 9, 10}.

Nearby chords (one less note): C13♯9, F11+♯1, C13♯9♭5, FM11+♯1, C11♯9+♯4, C13♯9♯11, F9+♯1+♯7, E♭+2+♯1+♯2+♯4.

Nearby chords (one more note): C13+♯2+♯4, C13♯9+♯1+♯4, G13♯5+♯2+♯7, F11+♯1+♯2+♯7.

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

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