What to do if the Xiaomi Smart Band 8 cannot access music?

Check whether the APP has obtained the right to use notifications and whether the APP's notification permissions are enabled. Check whether the APP has correctly enabled the permission to read notifications.
If it is the latest Xiaomi phone system, you need to enable permissions by the following steps:
Go to [Settings] >> [Privacy protection] >> [Special permissions] >> [Device and app notifications] >> select Mi Fitness APP, try to close and reopen [Allow notification access].
Confirm whether the mobile phone music player is turned on and whether the APP is connected to the band.
If a certain music player cannot be controlled, but other players in the phone can, it is recommended to uninstall and reinstall the player and try again.