The steps for making background music are recording music, editing music, adding background music, and adjusting music settings.

1. Record music: You need to record the music clips that you want to set as background music. You can use the recording software on your mobile phone or computer to complete this.

2. Cut and edit music: After recording the music, you need to use audio editing software to edit and adjust the music, such as cutting, splicing, adjusting the volume, etc., to make the music meet the needs.

3. Add background music: Import the edited music into WeChat. You can add background music in WeChat Moments or chat window. In Moments, you can add background music by adding a background music plug-in and uploading music files.

4. Adjust music settings: After adding background music, you can adjust the music playback method and settings, such as loop playback, volume, etc.