听录音，回答以下问题。

Q1: Where is Vienna?

Q2: Which family was the most famous family of musicians in Vienna?

Q3: What sort of music did Johann Strauss the elder write ?

Q4: What was Johann Strauss the younger ‘s most famous piece of music?

Q5: When was Mozart born ?

Q6: What did Mozart write in? addition to operas ?

Q7: How old was Mozart when he was died?

Q8: Who do people say was the greatest European composer?