it would not be neccessary for a student to know how to play a musical instrument, but it is helpful in certain fields and jobs. if you wish to be a musician or a music teacher, it would help to know how to play an instrument.
I would say that a character analysis may involve analyzing what the character says and what the character does.
Because, based on these two, we actually get the picture of what this character may be like.
1.Not sure
2.Was a greedy old man with no friends
3.Bot sure
4.Working and at night with the three ghost people
I am sorry could not answer all hoped I helped