A+♯1

A major, 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, A+♭9, A♯dim+♭1, A♯m♭5+♭1, B♭dim+♭1, B♭m♭5+♭1.

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

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

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

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

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

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