It's new, yes, but every other hourly theme from the other games lured me in right away. Sure there were some I didn't care for as much, but they all sounded so different and interesting. I loved it. With NH I can't really tell the difference. And who's idea was it to have music locked behind a week bar progress? That was such a stupid decision. Even CT island music that never changed except for day/night was so much better than what we got at the start. And if it rained, the island music stopped so you could hear the pitter-patter uninterrupted with the crashing waves, it was beautiful.
I just learned that one of the music composers that was around for a very long time in the series did not return to NH. So that could be a reason why.