Locomotive Symphony

A poem for singers

Up
Down, all around.
A train traveling over and in between mountains. 
Its whistle,
Loud first, crescendos into bouncing silence,
Echoing off the clouds.
Sometimes slow, Sometimes fast. 
You never know how long such a melody will last.
Engineers control it's every move.
The train's ears listen for each command.
They obey. Together they are one voice.
A Team.