Roberto,

I am sorry I can't help you but, if it is not a fragment written by MacColl himself, it is likely to be a Welsh song, given the mention of the Rhondda Valley. The fragment is:

In every village in the Rhonnda
Children cry for want of meat
Throughout the land their fathers wander
Singing for pennies in the street

I had a brief search of some sites on the Net, but could not find anything. Someone with a knowledge of Welsh song is sure to recognise it and, if nothing else, this posting will bring your request back to the top.

--Stewie.