0_Apprentice
What do you know about the piano? Great instrument!
1_Wizard
It has been around since 1700.  
0_Apprentice
Where was it invented, do you know?
1_Wizard
It was invented in Italy by Bartolomeo Cristofori.
0_Apprentice
Interesting! What else can you tell me please? I'm so curious.
1_Wizard
The word "piano" means soft, and the piano can be played different volumes by using different pressure on the keys.
0_Apprentice
What do the black keys do?
1_Wizard
I don't really know much about the difference in the keys. Other than you press them down to cause the hammers to strike the strings.
0_Apprentice
Did Bartolomeo invent anything else?
1_Wizard
There were a couple of guys named Bartolomeo, one named Veneto was a painter, but it was a different guy.