A+2+♯4

A major, add second, 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: B11-5, A+9+♯4, C♯m9♯5, C♭11-5, D♭m9♯5, A+2+♯11.

Notes in this chord: A, B, C♯, D♯, E. Integer notation: {1, 3, 4, 9, 11}.

Keys in which this chord fits with this spelling: EM, C♯m

Keys in which this chord fits with enharmonic spelling: F♭M, D♭m

Nearby chords (one less note): A+2, A+♯4, B4+2, B4+7, B9-5.

Nearby chords (one more note): B11, B11♯5, B11♭5, B13-5, A+2+4+♯4, A+2+♯1+♯4, A+2+♯2+♯4.

Parallel chords (same structure, different root): C+2+♯4, D+2+♯4, E+2+♯4, F+2+♯4, G+2+♯4, B+2+♯4, C♭+2+♯4, D♭+2+♯4, E♭+2+♯4, F♭+2+♯4, G♭+2+♯4, A♭+2+♯4, B♭+2+♯4, C♯+2+♯4, D♯+2+♯4, E♯+2+♯4, F♯+2+♯4, G♯+2+♯4, A♯+2+♯4, B♯+2+♯4.

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

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