1. First record a video and click the camera button in the upper right corner of Kuaishou.

2. Then click the record button in the recording interface to start recording a video.

3. After the recording is completed, click Next to complete the video recording.

4. You can see the soundtrack at the bottom of the next interface, click to start the soundtrack.

5. Then click the music library in the soundtrack to prepare to add music.

6. Open the music library interface, select music, and then click Use.

7. After using the music, return to the soundtrack and click Cut next to it.

8. In this way, you can cut the music by moving the progress bar below the cut. Note that the white area is the usage area. After completion, click the ? in the upper right corner.