A+♯1+♯2+♯4+♯12

A major, add sharp root, add sharp second, add sharp fourth, add sharp twelfth

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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: B♭m11♯7+♯4, B♭m11♯7+♭5, B♭m11♯7+♯11, F7+4+♯7+♯12, A+♯1+♯2+♯4+♯5, A+♯1+♯2+♯5+♯11.

Notes in this chord: A, A♯, B♯, C♯, D♯, E, E♯. Integer notation: {0, 1, 3, 4, 5, 9, 10}.

Nearby chords (one less note): B♭m11♯7, F7+4+♯7, A+♯1+♯2+♯4, A+♯1+♯2+♯5, A+♯1+♯4+♯5, A+♯2+♯4+♯5, A♭13♭7♭13-1.

Nearby chords (one more note): C13♯9+♯1, C13♯5♯9+♯1, D♭M13♯5+♯2, B11♭5+♯1+♯7, B♭M11+♯2+♯4.

Parallel chords (same structure, different root): C+♯1+♯2+♯4+♯12, D+♯1+♯2+♯4+♯12, E+♯1+♯2+♯4+♯12, F+♯1+♯2+♯4+♯12, G+♯1+♯2+♯4+♯12, B+♯1+♯2+♯4+♯12, D♭+♯1+♯2+♯4+♯12, E♭+♯1+♯2+♯4+♯12, G♭+♯1+♯2+♯4+♯12, A♭+♯1+♯2+♯4+♯12, B♭+♯1+♯2+♯4+♯12.

This chord contains too many notes to play on the 6 strings of guitar standard EADGBE tuning (change tuning or instrument).