Based on the context and the answer, generate a question. 

Context: * I turned my head and I saw an old gramophone / phonograph / whatever people use to play records on in the old days ( dude , I just pulled gramophone out of my butt ... I did n't even know that was a word ! ! ! and the correct one at that ! ) and I wondered what use to be played on it .

Answer:

He is shocked that he actually knew their name .



Why is the narrator so surprised about the music players ?