I attended Twilight Covening this year for the first time and learned a new chant - well, not really "new", but three chants put together to create a neato *mega* chant ;-)
These are the three chants:
1. Earth my body, Water my blood, Air my breath and Fire my spirit.
2. We all come from the Goddess and to her we shall return like a drop of rain flowing to the ocean.
3. We are one with the soul of the Earth, Mother Earth.
#1 was a more up-tempo, so in combining the two chants #1 is repeated twice throughout the entirety of #2 and #3 (#3 is a pretty slow chant). So, you would start with "Earth my body" in unison with "We all come". Start "We are one" after a beat, so it's a little delayed. "Fire my spirit" would fall with "we shall return" and "soul of". Then, repeat #1 and all chants should end together. I hope that all makes sense.
Anyway, blessings to all!