There are 5 parts in this song.
First, the intro, which is the same as the verse, is made up of the following progression:
IIm –> (I/3) –> (V) –> VIm –> (V/7) –> I –> (VI/M)
The chords in brackets ( ) are transition chords, i.e., they are very short. In this case, they appear on the [...]
