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

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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♭5+♯1+♯2, B♭M11♭5+♯1+♯9, B♭M11♭5+♯1+♭3, A+2+4+♯1+♯2+♯4, A+2+4+♯1+♯2+♭5.

Notes in this chord: A, A♯, B, B♯, C♯, D, E, D♯. Integer notation: {0, 1, 2, 3, 4, 9, 10, 11}.

Nearby chords (one less note): B♭M11♭5+♯1, B♭M11♭5+♯2, A+2+4+♯1+♯2, A+2+4+♯1+♯4, A+2+4+♯2+♯4, A+2+♯1+♯2+♯4, Adim+2+4+♯1+♯3, B♭dim+2+4+♯1+♯3.

Nearby chords (one more note): A11+♯1+♯2+♯4, B11+♯1+♯2+♯7, AM11+♯1+♯2+♯4, B♭M11+♯1+♯2+♯4.

Parallel chords (same structure, different root): C+2+4+♯1+♯2+♯11, D+2+4+♯1+♯2+♯11, E+2+4+♯1+♯2+♯11, F+2+4+♯1+♯2+♯11, G+2+4+♯1+♯2+♯11, B+2+4+♯1+♯2+♯11, D♭+2+4+♯1+♯2+♯11, E♭+2+4+♯1+♯2+♯11, G♭+2+4+♯1+♯2+♯11, A♭+2+4+♯1+♯2+♯11, B♭+2+4+♯1+♯2+♯11.

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