Conversation so far:
What was the classic lineup?
CANNOTANSWER.
Who was in the classic lineup?
basically recorded by the Humphreys/McCluskey duo, although included some guest drums from Id drummer Malcolm Holmes, and saxophone from Wirral musician Martin Cooper.
What songs did they perform?
"Messages.

Question: Were there any others?
Self-contained rewrite: In addition to "Messages" were there any other songs?