Here's a song from the same era that a friend from SF sang me to a well known classical tune whose name eludes me this morning:

WE ARE STUDENTS, WE ARE WORKERS
(Anon. circa 1960's)

We are students, we are workers,
We produce the wealth you see,
But the master class conspires
To keep us all in slavery.

Toiling millions, embrace one another,
To Hell with favors from above,
They will rue the day when we
Raise our red flag of liberty.