Video matching with music can be set in the built-in photo album. The specific operation method is as follows:

Tools/materials: Honor magic2, HarmonyOS2.0, photo album.

1. First, open the photo album on your phone, find the video you want to add music to, and click to enter.

2. Click to enter the video, and then click the edit question at the bottom of the screen.

3. After clicking Edit, click the soundtrack below.

4. Swipe the screen left and click on local music.

5. After entering local music, select a piece of music.

6. After selecting the music, you can edit the music. Move the mark in the picture below to select where the background music starts to play and where it ends.

7. After editing the music length, click Use.

8. Then it will jump to the following interface, click the button in the red box in the lower right corner.

9. Then click Finish, and the background music will be added successfully.