Raising the open third string to G# at the 1st fret makes this an E7 chord. By combining the root (C), 3rd (E), 5th (G) major ...
This chord is a smart amalgamation of Ed’s guitar playing on the track ... feature this melancholy heartstring-tugger, ...
By using various voicings of the same chord, you can expand your fretboard knowledge and spice up your chord progressions ...