In this continuation of our two-part article, the experts chime in with tips about music, editing, and communicating before and after you send your video.

Music Our experts suggested these tips for scoring your demo video, but we think they also apply to scoring your whole act. 1. Edit to the music. If you’re sending video of your complete act, include live sound, so the viewer can hear how you relate to your music and how your audience relates to you. But if you’re sending samples or a montage of your work, do not just overlay one music track that has nothing to do with the visuals. Maximize the impact of your video, and show off your professionalism by timing your video edits to correspond to changes in the music—always splice on the measure. This isn’t as hard as it sounds. In fact, many video editing software programs include an option to do this automatically. It makes a big difference. 2. Don’t use copyrighted music without permission. YouTube may block your video altogether, but even if you squeeze by, you’re sending agents the wron...