A4+♯4

A major fourth, add sharp fourth

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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: A4+♯11, Asus4♭5+3, C♯2+♯1+♯5, D♭2+♯1+♯5, C♯sus2♯5+♯1, D♭sus2♯5+♯1.

Notes in this chord: A, C♯, D, D♯. Integer notation: {1, 2, 3, 9}.

Nearby chords (one less note): A4, A4♯4, D♭2+♯1, Dsus2♭2.

Nearby chords (one more note): A+4+♯4, A7♭5+4, F7♯5+6, A4+2+♯4, D+♯1+♭1, A4+♯1+♯4, Adim+4+♯3, A♭sus4+♯1+♯4.

Parallel chords (same structure, different root): C4+♯4, D4+♯4, E4+♯4, F4+♯4, G4+♯4, B4+♯4.

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

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