musical instrument shopping in Xian

I know a musical instrument shop named 'Parsons Music' that has one of the best keyboard in this city. You can find what you want there. It's located at 3rd Floor, Hantang Book City. No.89, Middle Changan Road, Yanta District.
What do you mean by the shopping center? Do you refer to Bell Tower Area?
If yes, you can take subway line 2 at Zhonglou Station, and get off at Xiaozhai Station, Exit C. After arriving, walk to the destination directly.
Or you can just take a taxi from your starting place, the cab fare is about CNY 15.