Answer:
I have Eighty-eight keys but cannot open a single door.
I am the book one can never finish reading
Taken from a mine and then locked up in a wooden case. I am used by students everyday.
I am black of eye and bright of hair. I fast into the ground and follow my lord as he races around the world. What am I?
I hop around and deliver eggs at Easter.
The profession of Jimi Hendrix and Eric Clapton