Background music is audio that runs throughout an entire video or a large portion of it. There are built-in music tracks within the video maker that are available by clicking the Audio icon. These are normally created with instruments or digital means.
Ambience tracks are relatively shorter than background music and may include sounds from an airport, harbor, highway, or other environments. Ambience tracks aren't frequently used throughout an entire video and instead are placed within specific, relevant scenes. These tracks are also normally not created with instruments and instead capture the normal sounds heard in a specific location.
Sound effects are short, specific audio clips that are added into a small scene. This could include a cat's meow, computer beep, rooster's crow, and many other sounds. These items are frequently associated with characters or props within a scene.