If you want to add music to the videos in the album, you can use the system's built-in video editing function. The specific method is as follows:

1. Click on the desired video in the photo list of the album Add music to the video.

2. Click "Edit" on the screen in the video preview window, and the system will automatically import the video into the editing software and open the editing window.

3. Click "Add Music" under the video track in the video editing window, and the audio toolbar will pop up.

4. Click "Music" in the audio toolbar.

5. Click the music name in the "Select Music" window to listen to it, and then click the "Use" button to add the music to the audio track.

6. Click on the audio track and slide the icon at the bottom of the screen to the left.

7. Click the "Volume" button at the bottom of the screen.

8. Drag the volume slider to adjust the volume of the added music, and then click the check mark in the upper right corner of the volume window to confirm. If you want to adjust the volume of a video track, click on the video track and then perform this step.

9. Click the "Play" button to preview the edited video. If no modification is required, click the "Export" button in the upper right corner of the screen.

10. In the "Export Video" window, click "Confirm Export" at the bottom of the screen to complete the operation. The exported video is a video with music added, and this video can be opened in the photo album.