Which musical instrument store in Changchun accepts second-hand guitars? Tell me the specific location and contact number.

I know that the Rolling Stone Music Office in Changchun accepts second-hand guitar instruments, but it seems that it doesn't accept things like practicing piano. I heard that his family can still change it, just add some money for a better piano. That was a few years ago. I don't know whether to accept it now. Let me check for you. The telephone number is 85628473 and the address is at the intersection of Baihui Street and Xikang Road. Ask someone else yourself.