A3+♯1+♯2

A major third, add sharp root, add sharp 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: A3+♯1+♯9, A♯2+♯2+♯7, A♯2+♯7+♯9, B♭2+♯2+♯7, B♭2+♯2+♭1, B♭2+♯7+♯9.

Notes in this chord: A, A♯, B♯, C♯. Integer notation: {0, 1, 9, 10}.

Nearby chords (one less note): A3+♯1, A3+♯2, B♭2+♯2, B♭2+♯7.

Nearby chords (one more note): F+4+♯5, A+♯1+♯2, A4+♯1+♯2, A♭4+2+♯1, G♭+♯2+♯4, Gdim+2+4, A3+2+♯1+♯2, Adim+♯1+♯3.

Parallel chords (same structure, different root): C3+♯1+♯2, D3+♯1+♯2, E3+♯1+♯2, F3+♯1+♯2, G3+♯1+♯2, B3+♯1+♯2, C♭3+♯1+♯2, D♭3+♯1+♯2, E♭3+♯1+♯2, F♭3+♯1+♯2, G♭3+♯1+♯2, A♭3+♯1+♯2, B♭3+♯1+♯2, C♯3+♯1+♯2, D♯3+♯1+♯2, E♯3+♯1+♯2, F♯3+♯1+♯2, G♯3+♯1+♯2, A♯3+♯1+♯2, B♯3+♯1+♯2.

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

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