Conversation so far:
What is Death on Two Legs?
The opening track to A Night at the Opera, Death on Two Legs can be referred to as Freddie Mercury's hate letter to Queen's first manager, Norman Sheffield.
Why did Freddie Mercury hate Norman Sheffield?
Norman Sheffield was reputed to have mistreated the band and abused his role as Queen's manager from 1972 to 1975.
Did Norman Sheffield actually treat the band members of Queen badly?
Norman Sheffield denied the allegations in his 2013 autobiography entitled Life on Two Legs: Set The Record Straight, and referred to copies of the original 1972 management contracts.

Question: What else did he have to say about it?
Self-contained rewrite: What else did Norman Sheffield have to say about Freddie Mercury's allegations of mistreatment?