THE WORLD'S BIGGEST RECORDER!

Listen carefully and answer the questions: (You can use subtitles in English  if you need)

1-What is thist instrument?
2-How is its sound high or low?
3-Why is this instrument so special?
4-Is the instrument heavy?
5-How many meters tall does it have?
6-When was made?
7-How many are there in the world?
8-How much does it cost?
9-Which is the material of this instrument?
10-How many keys does it have?
11-How does she feel playing this instrument?
12-How many people in the world can play this instrument?
13-What do yoy think about this instrument?