B♭dim+2+♯1+♭1

B flat diminished, add second, 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: A+2+♯1+♯2, A+2+♯1+♯9, A+9+♯1+♯2.

Notes in this chord: B♭♭, B♭, B, C, D♭, F♭. Integer notation: {0, 1, 4, 9, 10, 11}.

Nearby chords (one less note): A+2+♯1, A+2+♯2, A+♯1+♯2, Am+2+♯1, A3+2+♯1+♯2, B♭dim+2+♯1.

Nearby chords (one more note): A9+♯1+♯2, AM9+♯1+♯2, G♭11♯9+♯4, A+2+4+♯1+♯2, A+2+♯1+♯2+♯4, A+2+♯1+♯2+♯5.

Parallel chords (same structure, different root): Cdim+2+♯1+♭1, Ddim+2+♯1+♭1, Edim+2+♯1+♭1, Fdim+2+♯1+♭1, Gdim+2+♯1+♭1, Adim+2+♯1+♭1, Bdim+2+♯1+♭1, D♭dim+2+♯1+♭1, E♭dim+2+♯1+♭1, G♭dim+2+♯1+♭1, A♭dim+2+♯1+♭1.

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

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