B flat dominant eleventh, sharp 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♯5+♯7, C13♯5+♭1, B♯13♯5+♯7, B♯13♯5+♭1, CM13♯5+♯6, B♭11♯11+♯1+♯7.

Notes in this chord: B♭♭, B♭, B, D, F, A♭, C, E. Integer notation: {0, 2, 4, 5, 8, 9, 10, 11}.

Nearby chords (one less note): C13♯5, CM13♯5, E11♭9+♯4, G13-1+♯2, Am11♯7+♯1, B♭9+♯1+♯7, FM11♯9+♯4, B♭11♯11+♯1.

Nearby chords (one more note): G13+♯1+♯2, C13♯5+♯1+♯7, C13♯5+♯2+♯7, E13♭13+♯1+♯4.

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

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