Irish players use more chords than old time players.

Key of G. Two parts. This is an Irish waltz (or is it an Air?). 

Chords from folkguitar. Are they right?

Part A: 


Part B: 


Not to be confused with...

Johnny Cash sang about a train called the Southwind: studio recording [Utoob], live video [Utoob]. 

There is a band called the South Wind.

A tune called Wind of the South has the same melody. It was recorded by the Chieftains.