I remember the first line:-

We're a folk group, we're a folk group
And we all come from Liverpool
And we all wear cuddly jumpers
And we always sound the same

a later one

"I can play this"
"I can play this"
"And I can play a bit of this"
"But I stand and do the talking 'cos I can't play anything"

His "Julio Doubleglazias" was also very entertaining