1. Online search: You can use search engines, such as Baidu and Google, to search for information about "repairing musical instruments in Hengdian". Usually, you can find the address and contact information of the store online.
2. Ask local residents: You can ask local residents about the location of the store. They are usually familiar with the local situation.
3. Telephone consultation: If you have the contact information of the store, you can directly call the store's phone to inquire about the address information.