C3+♯1+♯2+♭7

C dominant third, add sharp root, add sharp second, add flat seventh

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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, A+♯4+♯9, A+♯2+♯11.

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

Nearby chords (one less note): A+♯2, A+♯4, Am+♯4, Adim+♯3, C3+♯1+♯2.

Nearby chords (one more note): A11♯9♯11, A6+♯2+♯4, A+2+♯2+♯4, A+4+♯2+♯4, A+♯1+♯2+♯4, A+♯2+♯4+♯5, A♭+4+♯1+♯5.

Parallel chords (same structure, different root): D3+♯1+♯2+♭7, E3+♯1+♯2+♭7, F3+♯1+♯2+♭7, G3+♯1+♯2+♭7, A3+♯1+♯2+♭7, B3+♯1+♯2+♭7, D♭3+♯1+♯2+♭7, E♭3+♯1+♯2+♭7, G♭3+♯1+♯2+♭7, A♭3+♯1+♯2+♭7, B♭3+♯1+♯2+♭7.

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

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