User manual
4. Click / to play and pause the preview and click when you have
chosen a special effect, then click Done. Click to exit Fx Special Effect
and click Cancel if you don't want to add any special effect to your video.
7.11. Music
7.11.1. Music
Use the Music app to enjoy music stored on your phone. You can also create
playlists, set songs as ringtones for incoming calls, and more.
To see what you can do with your music, click to the right side of the song
name.