Background music is important for giving certain feel or mood in the video

  Background Music is the combination of music and recorded sounds that have no central melody. This can include noises from a passing breeze, talking birds, waves breaking on the shore, or anything else. Such music is often used in conjunction with other elements to create a more dramatic effect, such as music and a dramatic framing device, or an element of special effects. In the same way as using music for a feature film would use a specific sequence of shots with a specific theme, one can use such music to help give the videos a certain feel or mood. The most common types of such music for videos are used for action, romance, horror, comedy, suspense, and many others.

  Background music is a subset of "Business Audio" - a sub-group within the larger category of Music that often includes Performance, Post-production, Sound effects, and Game Audio. Such music is the non-performance elements within a recording that do not have an impact on the outcome of the activity that they occur within, such as narration, or dance. It is used to set the mood, enhance or provide variety, or establish rapport between different parts of a recording.

  The most obvious use of such music is in a video that is supposed to illustrate or show some kind of story, idea, or emotion. There are also some very specific uses for background music, one of which is when a character in a story is being interviewed. When the character talks, the interviewer has the ability to pause, add in other audio, or even a video to aid in understanding what the character is saying. Sometimes the interviewer will read the character's dialogue aloud, and sometimes they will do a recording of the character's dialogue while speaking monotone. All of these methods of adding audio to accompany an interview create a richer listening experience and can make a recording much more interesting to those who are interviewing the subject.