A+2+♯1+♯4

A major, add second, add sharp root, 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: B11-5+♯7, F♯13♯9-1, G♭13♯9-1, A+9+♯1+♯4, C♭11-5+♯7, A+2+♯1+♯11.

Notes in this chord: A, A♯, B, C♯, D♯, E. Integer notation: {1, 3, 4, 9, 10, 11}.

Nearby chords (one less note): A+2+♯1, A+2+♯4, A+♯1+♯4, B9-5+♯7, B♭dim+4+♯1, Asus2+♯1+♯4.

Nearby chords (one more note): G♭13♯9, B11♭5+♯7, A11♯11+♯1, G♭13-1+♯2, A+2+4+♯1+♯4, A+2+♯1+♯2+♯4.

Parallel chords (same structure, different root): C+2+♯1+♯4, D+2+♯1+♯4, E+2+♯1+♯4, F+2+♯1+♯4, G+2+♯1+♯4, B+2+♯1+♯4, C♭+2+♯1+♯4, D♭+2+♯1+♯4, E♭+2+♯1+♯4, F♭+2+♯1+♯4, G♭+2+♯1+♯4, A♭+2+♯1+♯4, B♭+2+♯1+♯4, C♯+2+♯1+♯4, D♯+2+♯1+♯4, E♯+2+♯1+♯4, F♯+2+♯1+♯4, G♯+2+♯1+♯4, A♯+2+♯1+♯4, B♯+2+♯1+♯4.

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

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