Conversation so far:
Where did Tōru Takemitsu grow up?
Takemitsu was born in Tokyo on October 8, 1930; a month later his family moved to Dalian in the Chinese province of Liaoning.
Did Tōru Takemitsu have any siblings?
What was Tōru Takemitsu's family life like?

Question: What were his hobbies in youth?
Self-contained rewrite: What were Tōru Takemitsu's hobbies in youth?