A+♯2+♯3+♯4

A major, add sharp second, 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+♯2+♯4, A+11+♯2+♯4, C3+2+♯1+♯2+♭7.

Notes in this chord: A, B♯, C♯, C♯♯, D♯, E. Integer notation: {0, 1, 2, 3, 4, 9}.

Nearby chords (one less note): A+4+♯2, A+4+♯4, A+♯2+♯4, Am+4+♯4, Adim+4+♯3, C3+2+♯1+♯2.

Nearby chords (one more note): A11♯9+♯4, D9+♯1+♯7, AM11♯9+♯4, Dm9+♯1+♯7, B♭M11♭5+♯2, A+2+4+♯2+♯4.

Parallel chords (same structure, different root): C+♯2+♯3+♯4, D+♯2+♯3+♯4, E+♯2+♯3+♯4, F+♯2+♯3+♯4, G+♯2+♯3+♯4, B+♯2+♯3+♯4, C♭+♯2+♯3+♯4, D♭+♯2+♯3+♯4, E♭+♯2+♯3+♯4, F♭+♯2+♯3+♯4, G♭+♯2+♯3+♯4, A♭+♯2+♯3+♯4, B♭+♯2+♯3+♯4, C♯+♯2+♯3+♯4, D♯+♯2+♯3+♯4, E♯+♯2+♯3+♯4, F♯+♯2+♯3+♯4, G♯+♯2+♯3+♯4, A♯+♯2+♯3+♯4, B♯+♯2+♯3+♯4.

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

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