A3+♯1+♯2+♯13

A major third, add sharp root, add sharp second, add sharp thirteenth

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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: Gdim+2+4, Gdim+4+9, Gdim+2+11, A3+♯1+♯2+♯6.

Notes in this chord: A, A♯, B♯, C♯, F♯♯. Integer notation: {0, 1, 7, 9, 10}.

Nearby chords (one less note): Gm4+2, Gdim+2, Gdim+4, A3+♯1+♯2, Gsus4♭5+2.

Nearby chords (one more note): C9♭9+6, Gm11♭5, E♭7+6+♯4, F13♭7♭13-1, G♭+♯1+♯2+♯4, Gdim+2+4+♯1, Gdim+2+4+♯3.

Parallel chords (same structure, different root): E3+♯1+♯2+♯13, B3+♯1+♯2+♯13.

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

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