A+2+♯1

A major, add second, add sharp root

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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+2+♭2, A+9+♯1, A♯dim+♯1+♭1, A♯dim+♭1+♭2, B♭dim+♯1+♭1, B♭dim+♭1+♭2.

Notes in this chord: A, A♯, B, C♯, E. Integer notation: {1, 4, 9, 10, 11}.

Nearby chords (one less note): A+2, A+♯1, A3+2+♯1, Asus2+♯1, B♭dim+♯1.

Nearby chords (one more note): A9+♯1, AM9+♯1, G♭11♯9, A+2+4+♯1, A+2+♯1+♯2, A+2+♯1+♯4, A+2+♯1+♯5.

Parallel chords (same structure, different root): C+2+♯1, D+2+♯1, E+2+♯1, F+2+♯1, G+2+♯1, B+2+♯1, C♭+2+♯1, D♭+2+♯1, E♭+2+♯1, F♭+2+♯1, G♭+2+♯1, A♭+2+♯1, B♭+2+♯1, C♯+2+♯1, D♯+2+♯1, E♯+2+♯1, F♯+2+♯1, G♯+2+♯1, A♯+2+♯1, B♯+2+♯1.

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

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