B♭4+2+♭1

B flat major fourth, add 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♯4+2+♯7, A♯4+9+♯7, B♭4+2+♯7, B♭4+9+♯7, Adim+4+♯1, Adim+11+♯1.

Notes in this chord: B♭♭, B♭, C, D, E♭. Integer notation: {0, 2, 3, 9, 10}.

Keys in which this chord fits with enharmonic spelling: B♭M, A♯M, Gm

Nearby chords (one less note): B♭4+2, Adim+4, B♭4+♯7, C2+6+7, Adim+♯1.

Nearby chords (one more note): B♭M11, F13-1, B♭M11♯5, B♭M11♭5, A♭+2+♯1+♯4, Adim+2+4+♯1, Adim+4+♯1+♯3.

Parallel chords (same structure, different root): D4+2+♭1, G4+2+♭1, A4+2+♭1, E♭4+2+♭1, A♭4+2+♭1.

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

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