It is good Netiquette to use music to move the story along. Do include background music.
Music Netiquette For Videos
Music helps tell the story in video. The type sets the mood. Fast upbeat music is exciting. Background noise from production can be hidden with it.
A musical track that is 25% of the volume of the voice track allows voices to be heard over it. Music is a great way to smooth over the mistakes of amateur video.
Use music because it helps move stories along and hides background noise.