A+9+♯1

A major, add ninth, 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+♯1, A+2+♭2, A♯dim+♯1+♭1, A♯dim+♭1+♭2, B♭dim+♯1+♭1, B♭dim+♭1+♭2.

Notes in this chord: A, A♯, C♯, E, B. 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+9+♯1, D+9+♯1, E+9+♯1, F+9+♯1, G+9+♯1, B+9+♯1, C♭+9+♯1, D♭+9+♯1, E♭+9+♯1, F♭+9+♯1, G♭+9+♯1, A♭+9+♯1, B♭+9+♯1, C♯+9+♯1, D♯+9+♯1, E♯+9+♯1, F♯+9+♯1, G♯+9+♯1, A♯+9+♯1, B♯+9+♯1.

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

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