Sorry to learn of the death of Grenville. He was indeed a real character. I remember sometimes seeing him riding around on his motorbike in the 1970's and early 1980's with a sort of sandwich board on his back advertising the Co-Op Folk Club. It met in the Radford/Lenton area (somewhere around Hartley Road, in a large pub room with an arcade of red and white candy stripe pillars around the walls, though I now forget the name).

A favourite song of his at that time (the early Thatcher years of soaring unemployment), which I will always associate with him, was the one that had a chorus that goes

If yer can't get work
Yer can't get the sack
An argument that's sensible and sound.
So, lay back on your piller
And read yer Daily Mirrer
And wait till the work cooms raand.

Then there were the tasty and ludicrously cheap vegetable curries at the Gladstone folk club - I seem to recall 20p or maybe 40p - which he had a pivotal hand in organising.

As others have said, Gren was a friendly and welcoming guy. He will be much missed.