Here's a recording of the instrumental version of this song. I wrote the first part when I was 10, the second part when I was 12. The recording is from 1987, when I was around 20.
Here are the lyrics I remember from the first part, sung from the perspective of the bananas:
We are marching forward, on we go
Pulling our peels around us, trudging through the snow
Almost getting stepped on, caught in a drift
But when we get there, spirits will lift
We, bananas, are marching across the train track
Here are the lyrics I remember from the second part, sung from the perspective of the train operators:
Here they come, those stupid fruits, they're only half alive
We are men and we are strong and we will thrive