Joe,

The word "callow" has a very particular resonance with me - and it's nothing to do with youth. It's the term used for the flood plain of the River Shannon in its mid-section (Athlone to Portumna) where I spent many a night chasing corncrakes. I've never heard it as a river name.

I had a quick listen to Barry's version but will need to do so again to get my thoughts together. My instinctive reaction was that the tune sounded not-quite-Irish.

I'll have another good listen before starting a chase.

Regards

p.s. Might be worth asking Dave Ingerson what he knows about it - does he still hang around here on occasion?