A9+♯1+♯7+♯9
A dominant ninth, add sharp root, add sharp seventh, add sharp ninth

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MSK 007 Leapfrog VCF
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MSK 009 Coiler VCF
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Equivalent chord symbols: A9+♯1+♯2+♯7, A9+♯1+♯2+♭1, A♭M11♯5+♯1+♯2, A♭M11♯5+♯1+♯9, A♭M11♯5+♯1+♭3.
Notes in this chord: A, A♯, C♯, E, G, G♯, B, B♯. Integer notation: {0, 1, 4, 7, 8, 9, 10, 11}.
Nearby chords (one less note): A9+♯1+♯2, A9+♯1+♯7, A9+♯2+♯7, AM9+♯1+♯2, Am9+♯1+♯7, A♭M11♯5+♯1, A♭M11♯5+♯2, Gdim+2+4+♯1+♯3.
Nearby chords (one more note): B13♯5+♯1+♯7, G13♭5+♯1+♯2, A11+♯1+♯2+♯7, G♭11+♯1+♯2+♯4.
Parallel chords (same structure, different root): C9+♯1+♯7+♯9, D9+♯1+♯7+♯9, E9+♯1+♯7+♯9, F9+♯1+♯7+♯9, G9+♯1+♯7+♯9, B9+♯1+♯7+♯9, D♭9+♯1+♯7+♯9, E♭9+♯1+♯7+♯9, G♭9+♯1+♯7+♯9, A♭9+♯1+♯7+♯9, B♭9+♯1+♯7+♯9.
This chord contains too many notes to play on the 6 strings of guitar standard EADGBE tuning (change tuning or instrument).