Note the minor 2nd between Eb and E on the first and second strings. This resolves nicely to a regular A chord at the 2nd ...

Improving the chord voicings within your song or production ... We’ll work with four chords; C major, G major, A minor and F ...

These major or minor chords contain three different notes ... boosted with major 7th and dominant 7th flavours. With these chord voicings and rhythms, you're venturing into the funk/soul world ...