B♭♭5+♯1+♯2+♭1

B flat major, flat fifth, add sharp root, add sharp second, 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: A+2+4+♯1, A+4+9+♯1, A+2+11+♯1, G♭13♯9♭13-1.

Notes in this chord: B♭♭, B♭, B, C♯, D, F♭. Integer notation: {1, 2, 4, 9, 10, 11}.

Nearby chords (one less note): A+2+4, A+2+♯1, A+4+♯1, A4+2+♯1, Asus4+2+♯1, B♭♭5+♯1+♯2.

Nearby chords (one more note): A11+♯1, AM11+♯1, Bm11♭5+♯7, G♭13♯9♭13, A+2+4+♯1+♯2, A+2+4+♯1+♯4.

Parallel chords (same structure, different root): E♭♭5+♯1+♯2+♭1, A♭♭5+♯1+♯2+♭1.

Experimental fretting charts for guitar standard EADGBE tuning (change tuning or instrument):

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