Specific operation method:
1. First, find the Lexiu video editor in the mobile app store, and click Download and Install.
2. Enter the downloaded and installed Lexiu video editor, and click Video Edit under the interface.
3. You can choose to add pictures or videos. Add a video here and click to start making.
4. Enter the video beautification, select the sound below, and select the soundtrack.
5. Then enter the music interface. In My Music, select a favorite music and add it.
6. This completes the operation of adding your favorite music, and finally click Export in the upper right corner.