The steps to open the screen lock music interface of this device are as follows:

1. Open the setup application of the device.

2. Scroll and find the Music option, and then click Enter.

3. On the music settings page, find and open the options displayed on the lock screen.

4. Make sure the device is connected to an application that supports music playback.

5. When playing music on the device, the lock screen interface will display music control buttons, and you can control music playing, pause, switch songs and other operations through the device.