I didn't know him or his work, but I'm sorry to hear this. He was too young. Dang, a few months younger than me. At least he felt healthy and vigorous up to the end.
Just yesterday, I finished a book that Sarah bought called "Niihau: The Traditions of an Hawaiian Island" by Rerioterai Tava and Moses K. Keale Sr. (pub. 1989 by Mutual Publishing) The latter is obviously a makuakane of Moe's and Reri was a co-author (and student), with Uncle Ray, of Uncle's out-of-print tab book of the '70s.
If you would like to understand the ways of life of Moe's `ohana - which certainly formed him as a person, you would enjoy this book.
Among the things mentioned was that there are (were?)slackkey styles that were particular to Ni`ihau (and other islands, too). I think I can identify BI style when I hear it, but don't know how to characterize it. I would love to know how they differed. Anybody know?