A major, add second, add 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: A+4+9, A+2+11, Bm11-5, C♭m11-5, E13-3-9, F♭13-3-9.

Notes in this chord: A, B, C♯, D, E. Integer notation: {1, 2, 4, 9, 11}.

Keys in which this chord fits with this spelling: DM, AM, Bm, F♯m

Keys in which this chord fits with enharmonic spelling: C♭m, G♭m

Nearby chords (one less note): A+2, A+4, A4+2, Bm4+2, Asus4+2.

Nearby chords (one more note): A11, AM11, Bm11, Bm11♭5, A+2+4+♯1, A+2+4+♯2, A+2+4+♯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):