Help me, o Internets; I don't know where to start.

So I know you all are still waiting for The Tropic of Serpents to come out, but backstage, we're already ramping up for the third book of the series. And you know what that means: research!

. . . on a topic I don't know at all. A large portion of the third book, you see, will take place in an area based on the Polynesian Islands. My knowledge of Polynesian culture pretty much consists of "tourism in Hawai'i," which, y'know. Not so much. The sole book in my library on the topic is Pacific Mythology, which is an encyclopedia-style overview of the entire Pacific, Polynesian and otherwise.

So where do I start? Does anybody out there have recommendations for good early histories (pre-European contact, though not necessarily pre-other-people contact), "daily life in ancient Hawai'i" type books, local mythology 101, etc?

I also could use recommendations of appropriate music. I make heavy use of playlists to set my brain in the right gear, but I have zilch in the way of stuff from that particular milieu. I don't even know what it sounds like, beyond "stereotypical hula tunes." Traditional folk music, movie scores that draw on that kind of sound, all of those things are good.

Help me, o Internets. I'm dead in the water here.