According to the Internet source given below, The Scaffold were a comedy, poetry and music trio from Liverpool, consisting of musical performer Mike McGear (real name Peter Michael McCartney, the brother of Paul McCartney of The Beatles), poet Roger McGough and comic entertainer John Gorman.
They were active from 1964 to 1977. Amongst their greatest song successes are Liverpooö Lou and Lily the Pink.

Websites:
	The Scaffold	Biography by wikipedia.org.