Conversation so far:
when did Humphrey Lyttelton's career first start to take off?
and formed a quartet at the school in 1936.
where did he go to school at?
From Sunningdale Preparatory School, Lyttelton duly progressed to Eton College.
what country/state was this in?
in Buckinghamshire).
is there something big that changed his life?
At Eton, Lyttelton fagged for Lord Carrington and formed his love of jazz.
what year did the jazz love  begin?
1936.

Question: what was one of his big jazz accomplishments?
Self-contained rewrite: What was one of Humphrey Lyttelton's big jazz accomplishments?