A major, add second, add fourth, 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+2+4+♯1+♯2, A+2+4+♯1+♭3, B♭M9♭5+♯1+♯2, B♭M9♭5+♯1+♯9, B♭M9♭5+♯1+♭3.

Notes in this chord: A, A♯, B, C♯, D, E, B♯. Integer notation: {0, 1, 2, 4, 9, 10, 11}.

Nearby chords (one less note): A+2+4+♯1, A+2+4+♯2, A+2+♯1+♯2, A+4+♯1+♯2, B♭M9♭5+♯1, A4+2+♯1+♯2, B♭dim+2+♯1+♯3.

Nearby chords (one more note): A11+♯1+♯2, AM11+♯1+♯2, C13-5+♯1+♯7, G♭13♯9♭13+♯4, B♭M11♭5+♯1+♯2.

Parallel chords (same structure, different root): C+2+4+♯1+♯9, D+2+4+♯1+♯9, E+2+4+♯1+♯9, F+2+4+♯1+♯9, G+2+4+♯1+♯9, B+2+4+♯1+♯9, D♭+2+4+♯1+♯9, E♭+2+4+♯1+♯9, G♭+2+4+♯1+♯9, A♭+2+4+♯1+♯9, B♭+2+4+♯1+♯9.

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