Correct. Rick wakeman wrote The Six Wives of Henry VIII after he had been the keyboard player for Yes. Jeff Wayne wrote War of the Worlds after he had been the keyboard player for The Sandpipers.
The last cup tie to involve an amateur club was Hendon v Newcastle (played at the Vic) - shortly afterwards the distinction between 'amateur' and 'professional' was lifted. I can't remember the year though - 1974 ?
Do you mean list every cup tie involving an amateur club? or last ever cup final tie involving an amateur club? Which will take a very long time or will be Queens Park.
In Denmark what is a Svangerskabsforebyggendemiddel ? Clue - you have an advantage if you understand some German here.