You cannot directly add music to pictures posted in WeChat Moments, but you can use third-party software to add music to the pictures and then share them to Moments. The specific operation method is as follows. First prepare the software: Tencent Time.

1. First download and install Tencent Time, and then click to open Tencent Time.

2. After opening Tencent Time, click on the icon at the bottom of the page.

3. In the pop-up window, choose from the photo album, or you can choose to take a photo, just choose according to your needs.

4. After opening the album, select the photo you want to publish, and then click the next point.

5. After opening the page, click Music at the bottom of the page.

6. Choose the music to match.

7. Edit the music as needed.

8. After editing, click Publish/Share in the upper right corner.

9. Click Publish at the bottom of the page.

10. In the pop-up menu, click to open the circle of friends.

11. Edit the content to be published, and then click Publish.