Step 4: Adding Music and Sound Effects

What about music? We’ll go to the Timeline view to fix that. Click on the View menu and then on Timeline.

If you’re still on Transitions or Effects in the main window, click the drop-down menu. Then click on the Collections option to view all the music and video you imported.
To add Music or Sound Effects to your movie, simply drag and drop the file you imported into the Audio/Music bar on the Timeline, the bar below the one with your pictures on it. You can slide the music around on that Audio/Music bar to make it begin at a certain point in your show. If you have more than one clip that you want to play,you can shorten clips by dragging on the end of the clip in the Audio/Music Bar.