A+♯2

A major, 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: A+♯9, A+♭3, C3+6+♯1, B♯3+6+♯1, Caug♯5+♯1, B♯aug♯5+♯1.

Notes in this chord: A, B♯, C♯, E. Integer notation: {0, 1, 4, 9}.

Nearby chords (one less note): A, Am, A3+♯2, C3+♯1.

Nearby chords (one more note): A9♯9, A6+♯2, A+2+♯2, A+4+♯2, A+♯1+♯2, A+♯2+♯4, A+♯2+♯5, A+♯2+♭1.

Parallel chords (same structure, different root): C+♯2, D+♯2, E+♯2, F+♯2, G+♯2, B+♯2, C♭+♯2, D♭+♯2, E♭+♯2, F♭+♯2, G♭+♯2, A♭+♯2, B♭+♯2, C♯+♯2, D♯+♯2, E♯+♯2, F♯+♯2, G♯+♯2, A♯+♯2, B♯+♯2.

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

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