A2+♭2

A major 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, A2+♭9, B1+7+♯7, A♯2♭2+♯7, B♭2♭2+♯7, C♭1+7+♯7.

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

Nearby chords (one less note): A2, A2♭2, B♭2♭2.

Nearby chords (one more note): E♯♭5+4, G♭4+♯2, A2+7+♯1, A3+2+♯1, A2+♯1+♯2, Asus2+♯1, A♭2+♯1+♯2, B♭3+♯1+♯7, Asus2♭5+♯1.

Parallel chords (same structure, different root): C2+♭2, D2+♭2, E2+♭2, F2+♭2, G2+♭2, B2+♭2, C♭2+♭2, D♭2+♭2, E♭2+♭2, F♭2+♭2, G♭2+♭2, A♭2+♭2, B♭2+♭2, C♯2+♭2, D♯2+♭2, E♯2+♭2, F♯2+♭2, G♯2+♭2, A♯2+♭2, B♯2+♭2.

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

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