The beauty of this tune is that it has only three chords. The good news is one of those chords is a diminished chord, so chances are it is new to you. If it is not new to you, there is always much to learn about chord groups.
Diminished chords repeat every four frets, watch the video below to get an idea for the sound (tension) that chords of this character evoke.
Diminished chords are get the name from diminishing, or shrinking intervals, similarly tense chords but opposites are…you guessed it augmented chords. Chords where intervals are stretched or augmented to be longer.
Click the graphic below for the tabs and notation in free tabledit files format!