B♭11+♭9
B flat dominant eleventh, add flat ninth
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MSK 007 Leapfrog VCF
(patch;
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MSK 009 Coiler VCF
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Equivalent chord symbols: A♯11+♯1, A♯11+♭2, A♯11+♭9, B♭11+♯1, B♭11+♭2, A♭9♭7+♯2+♯4.
Notes in this chord: B♭, D, F, A♭, C♭, C, E♭. Integer notation: {0, 2, 3, 5, 8, 10, 11}.
Nearby chords (one less note): B♭11, B♭11♭9, B♭9+♯1, A♭9♭7+♯2, A♭6+♯2+♯4, B♭+2+4+♯1, A♭+2+♯2+♯4.
Nearby chords (one more note): B♭13+♯1, F13♯9+♯4, B♭11+♯1+♯2, B♭11+♯1+♯4, B♭13♭13+♯1.
Parallel chords (same structure, different root): C11+♭9, D11+♭9, E11+♭9, F11+♭9, G11+♭9, A11+♭9, B11+♭9, C♭11+♭9, D♭11+♭9, E♭11+♭9, F♭11+♭9, G♭11+♭9, A♭11+♭9, C♯11+♭9, D♯11+♭9, E♯11+♭9, F♯11+♭9, G♯11+♭9, A♯11+♭9, B♯11+♭9.
This chord contains too many notes to play on the 6 strings of guitar standard EADGBE tuning (change tuning or instrument).