A7+♯2+♯7

A dominant seventh, add sharp second, add sharp 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: A9♯9+♯7, A9♯9+♭1, C6+♯1+♯5, B♯6+♯1+♯5, C6+♯1+♯12, B♯6+♯1+♯12.

Notes in this chord: A, B♯, C♯, E, G, G♯. Integer notation: {0, 1, 4, 7, 8, 9}.

Nearby chords (one less note): A9♯9, A7+♯7, C6+♯5, A+♯2+♭1, C+♯1+♯5, A♭4+♯1+♯7.

Nearby chords (one more note): E13♯5♯9, A9+♯2+♯7, E♭13♭5♭9, A♭M13♯5♭9, A♭M11♯5+♯1, G♭m11♯11+♯1.

Parallel chords (same structure, different root): C7+♯2+♯7, D7+♯2+♯7, E7+♯2+♯7, F7+♯2+♯7, G7+♯2+♯7, B7+♯2+♯7, C♭7+♯2+♯7, D♭7+♯2+♯7, E♭7+♯2+♯7, F♭7+♯2+♯7, G♭7+♯2+♯7, A♭7+♯2+♯7, B♭7+♯2+♯7, C♯7+♯2+♯7, D♯7+♯2+♯7, E♯7+♯2+♯7, F♯7+♯2+♯7, G♯7+♯2+♯7, A♯7+♯2+♯7, B♯7+♯2+♯7.

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

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