One of the sentences in which the author uses figurative language is the idea of a "broken accordion" The author is trying to tell us that all of a sudden, his whole world was turned upside down. His mother and father had changed roles, and everything felt strange.
The author compares this feeling of oddity with the idea of a broken musical instrument, which leads him to say that the world was "out of tune." This comparison is useful because an instrument that works produces beautiful music, while a broken one only produces sad and confusing noise.
A. informal and conversational he did not give what park to meet him at but he was being conversational therefore he was being informal but he was being conversational.
