A+♯1+♯3+♯4

A major, add sharp root, add sharp third, add sharp fourth

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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+4+♯1+♯4, B♭M11♯9♭5, A+11+♯1+♯4, B♭♭5+4+♯2+♭1.

Notes in this chord: A, A♯, C♯, C♯♯, D♯, E. Integer notation: {1, 2, 3, 4, 9, 10}.

Nearby chords (one less note): A+4+♯1, A+4+♯4, A+♯1+♯4, A4+♯1+♯4, B♭♭5+4+♯2, Asus4+♯1+♯4.

Nearby chords (one more note): A11♭9+♯4, A11♭7♭9+♯4, B♭M11♯9+♯4, B♭M11♭5+♯2, A+2+4+♯1+♯4, B♭11♯9♭5+♯7.

Parallel chords (same structure, different root): C+♯1+♯3+♯4, D+♯1+♯3+♯4, E+♯1+♯3+♯4, F+♯1+♯3+♯4, G+♯1+♯3+♯4, B+♯1+♯3+♯4, C♭+♯1+♯3+♯4, D♭+♯1+♯3+♯4, E♭+♯1+♯3+♯4, F♭+♯1+♯3+♯4, G♭+♯1+♯3+♯4, A♭+♯1+♯3+♯4, B♭+♯1+♯3+♯4, C♯+♯1+♯3+♯4, D♯+♯1+♯3+♯4, E♯+♯1+♯3+♯4, F♯+♯1+♯3+♯4, G♯+♯1+♯3+♯4, A♯+♯1+♯3+♯4, B♯+♯1+♯3+♯4.

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

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