PRACTICE (April 19, 2003)

[Quiz] "Guess who I am!" (Asai)

"I"am a very famous person in the world.
Someone has already passed away and someone is still alive.
I'll give you some hints about "me".
Please guess who I am.
And talk freely.

For example,
I was born in Salzburg,Austria, in 1756.
All of my family engaged in music.
When I was 6years old, I played "Klavier"(It was like a piano) in front of the Empress Maria Theresia. My works has K.V. number.

This answer is Mozart,Wolfgang Amadeus!!