Depends on how you listen to the song.

If you are using a music application that has been downloaded on your mobile phone or other device, such as QQ Music or Baidu Music, and you are playing music files that have been downloaded locally, then it usually does not consume data. . This is because the local files are already on your device, there is no need to download or stream the music data from the web. However, if you are using an online music service, such as the online playback function provided by an online music service provider, or playing online music through a car Bluetooth system, then this will consume mobile data traffic. Online music services usually require downloading or streaming music data over the Internet, which involves the use of data. In order to save traffic, you can choose to listen to songs in a Wi-Fi environment, or download music files in advance so that they can be played even without a network. In addition, some music applications may also provide services such as exclusive data packages, which can reduce data consumption to a certain extent. When using any online service, it is recommended to check its data usage policy to ensure that you do not exceed your data budget.