This poem came from the March 2, 2010 Poetry Fishbowl. It was inspired by a prompt from xjenavivex and sponsored by janetmiles. This is just one set of possible correspondences between elements and musical instruments; I had fun with it.
Drums are the Earth,
wood and skin turned to tumbling sound.
Flutes are the Air,
breeze become breath become music.
Violins are the Fire,
gut and hair and cry of hot-blooded beasts.
Oboes are the Water,
long wet reeds weeping their hearts out.
Voices are the Spirit,
the only musical instrument made by God.