Great insight Tristan. I think it's clear that you've put more thought into this than those who wrote this section of the Manual!
This issue doesn't come up
that often, I think because most teams are either unfamiliar with the issue and choose music that is either included in a video editing package or from websites that offer "license free" music like Libby alluded to. And I think that both of these scenarios are definitely in alignment with what FIRST wants in a Chairman's video.
Either that, or we all need to start composing and producing our own music
