A3+2+♯1+♯9

A major third, add second, add sharp root, add sharp ninth

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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+2+♯1+♯2, A3+2+♯1+♭3, B2+7+♯1+♯7, B2+7+♯1+♭1, B♭2+♯1+♯2+♯7, B♭2+♯1+♯2+♭1.

Notes in this chord: A, A♯, B, C♯, B♯. Integer notation: {0, 1, 9, 10, 11}.

Nearby chords (one less note): A3+2+♯1, B2+7+♯1, A2+♯1+♯2, A3+♯1+♯2, B♭2+♯1+♯2.

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

Parallel chords (same structure, different root): C3+2+♯1+♯9, D3+2+♯1+♯9, E3+2+♯1+♯9, F3+2+♯1+♯9, G3+2+♯1+♯9, B3+2+♯1+♯9, D♭3+2+♯1+♯9, E♭3+2+♯1+♯9, G♭3+2+♯1+♯9, A♭3+2+♯1+♯9, B♭3+2+♯1+♯9.

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

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