This is yet another example of age data being confused with "passing time" data. Every observation in this study appears to be cross-sectional, meaning they examined someone's age today and compared that to the music they listened to today. Those people's music tastes were not tracked over time. It's possible that…

Only if Nick Jonas was the Innkeeper's Wife.

I think it would have to be something little more recognizable to the general public. Oklahoma, perhaps? Or something more modern, like Phantom. I know that musical theater veterans are tired of those shows, but they would play well to a large audience of non-musical theater geeks.

Sounds to me like if they just dump the celebrity angle and cast people according to their talents rather than their fame, it could be a really good production.