As I've worked on Elyssa and her background, one thing I've come to conclude is she'd absolutely adore disco. Her father, Leonard, had been an avid disco fan since his youth and he passed that love onto his daughter. Disco is what eventually helped convince Elyssa to join dance and drove her initial friendship with Hazel.
As she grew up it seemed that Elyssa spent almost as much of her free time at one of several of the local discotheques as she did surfing at the beach. Despite their waning popularity, the ones that focused on disco is where she frequented. It didn't take much for her to establish her own reputation on the dancefloor as the dancing queen.
----- And here we have a piece from a few months back done by LuthienNightwolf. One of a pair focusing on the dancing duo and their loves and inspirations. I'll try to have the other up in the next few days, but if you can't wait to see it (and haven't yet been to watch her) go to Luthien's page. It's already been up there a while!