All the tabs for this song so far have just been wrong.

It's an easy song, for the most part. Just basically two chords back and forth.

Intro, verse, chorus: G D


The musical interlude, however, adds a third chord, which is NOT C, but Gm.

So underneath the harmonica: Gm G D G


The chords, played on a mandolin, would look like this:

(strings: E-A-D-G)
G: 3-2-0-0
D: 2-0-0-2
Gm: 3-1-0-0

On guitar, chords are just normal.