A+♯1+♯9

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

Notes in this chord: A, A♯, C♯, E, B♯. Integer notation: {0, 1, 4, 9, 10}.

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

Nearby chords (one more note): C9♭9+6, A+2+♯1+♯2, A+4+♯1+♯2, G♭11♯9♯11, A+♯1+♯2+♯4, A+♯1+♯2+♯5, A+♯1+♯2+♭1.

Parallel chords (same structure, different root): C+♯1+♯9, D+♯1+♯9, E+♯1+♯9, F+♯1+♯9, G+♯1+♯9, B+♯1+♯9, C♭+♯1+♯9, D♭+♯1+♯9, E♭+♯1+♯9, F♭+♯1+♯9, G♭+♯1+♯9, A♭+♯1+♯9, B♭+♯1+♯9, C♯+♯1+♯9, D♯+♯1+♯9, E♯+♯1+♯9, F♯+♯1+♯9, G♯+♯1+♯9, A♯+♯1+♯9, B♯+♯1+♯9.

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

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