After entering the home page of the computer, click the logo of the local song on the left to come in.

There is one on the upper right, with music. Click it.

Next, select Add Music or Folder Name. Because your songs are usually stored in the folder name, if you didn't add songs, it is highly recommended that you add the folder name.

If it can be retrieved, it will go directly to the import page, allowing you to count how many.