Conversation so far:
What is Parlophone in relation to George Martin?
George Martin joined EMI in 1950 as an assistant to the head of EMI's Parlophone Records from 1950 to 1955.
Who was the head of Parlophone Records Limited when George Martin worked as an assistant to the head of the record label?
Oscar Preuss was the head of EMI's Parlophone Records from 1950 to 1955 when George Martin worked there.
Why did Oscar Preuss retire from working at EMI's record label Parlophone?
Although having been regarded by EMI as a vital German imprint in the past, Parlophone Records was then not taken seriously and only used for EMI's insignificant acts.

Question: Are there any other interesting aspects about this article?
Self-contained rewrite: Are there any other interesting aspects about Oscar Preuss' retirement from EMI's record label Parlophone Records?