Covering the compass today with the songs which are stuck in my head.
For Air and Earth:
Dust In The Wind by Todd Rundgren (1972)
For Fire and Water:
Fire and Rain by James Taylor (1970)
..although the Tim Hardin version is good, too.
These are two very similar songs, written less than 2 years apart. I was faintly surprised that the Rundgren song was later, as the Runt was often a groundbreaker in styles, sentiment and sound engineering.
But you can segue from one song to the other in your head with hardly a pause.