I actually just realized something seriously interesting about the tunes that play during the Intro of Seven Sirens and Half-Genie Hero.
Dance Through the Danger is basically her power ballad. She proclaims to the world if darkness and evil were to pervert the world, she will be there to batter it back and to urge others to help her, so that they all can live in a better world. In the game proper, it's because of that urge that Shantae's saved from becoming Nega Shantae by her friends.
Whereas the Trigger Song is more about Shantae's want to live a normal life, but if trouble arises, she'll make sure that the day is saved and that nothing will stop her. Despite Sky and Mimic wanting her to stay put, Shantae will do anything in her power to make sure that the other Half-Genies are saved, even if it means her vacation time is cut short.
It also sort of reminds me of the tone that the OG Teen Titans Cartoon's theme had, with one song being about superheroes saving the day and the other being about teens relaxing in life.