This is because the title in file properties is different from the actual file name. If you want to rename music title, you have to change the file properties on your pc.
Right-click on the audio file, click 'Properties' and go to the 'Details' tab.
You can edit detailed information such as album name, genre, as well as music title, and click the 'OK' button to change the information.
The actual music file name is different from the music title on the music player.
