Sounds Hawai'ian doesn't it?
Lately I have been doing a lot of playing in what some article online called "Modal G tuning" which is DGDGCD. What I know is that on my acoustic guitar it makes me think of the Dark Tower novels [which I'd do anyway], specifically the story that Jake, Eddie and Susannah all share about having encountered the same "musician" in Central Park, a homeless man playing a saw, who says "sounds Hawai'ian, doesn't it?" While I don;t know if the afforementioned tuning is genuine "slack key" or not, it sounds very Hawai'an and lends itself to melodic playing quite nicely.