A2+♯2+♭2

A major second, add sharp second, add flat second

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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: A2+♯1+♯2, A2+♯1+♯9, A♯2+♯1+♯7, A♯2+♯1+♭1, B♭2+♯1+♯7, B♭2+♯1+♭1.

Notes in this chord: A, B♭, B, B♯. Integer notation: {0, 9, 10, 11}.

Nearby chords (one less note): A2+♯1, A2+♯2, B♭2+♯1, B♭2+♯7.

Nearby chords (one more note): F+4+♯4, Am+2+♯1, G4+2+♯2, Am4+2+♯1, Adim+2+♯1, G♭♭5+4+♯2, A3+2+♯1+♯2, A♭3+2+♯1+♯2.

Parallel chords (same structure, different root): D2+♯2+♭2, G2+♯2+♭2, D♭2+♯2+♭2, G♭2+♯2+♭2, A♭2+♯2+♭2.

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

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