Bdim7+♯1+♭1

B diminished seventh, 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♯9+♯1, A♯9+♭2, A♯9+♭9, B♭9+♯1, B♭9+♭2, B♭9+♭9.

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

Nearby chords (one less note): B♭9, B♭9♭9, B♭+2+♯1, Fm+4+♯4, Bdim7+♯1, A♭♭5+2+♯2.

Nearby chords (one more note): B♭11+♯1, G11♯9+♯1, B♭9+♯1+♯2, B♭9+♯1+♯5, B♭9+♯1+♯7, B♭11♯11+♯1.

Parallel chords (same structure, different root): Cdim7+♯1+♭1, Ddim7+♯1+♭1, Edim7+♯1+♭1, Fdim7+♯1+♭1, Gdim7+♯1+♭1, Adim7+♯1+♭1, D♭dim7+♯1+♭1, E♭dim7+♯1+♭1, G♭dim7+♯1+♭1, A♭dim7+♯1+♭1, B♭dim7+♯1+♭1.

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

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