Complex sentence: The musical origin of this form of dance is not clear however, Sir Arthur Grimble in his writings the "Tungaru Traditions" (c1989, University of Hawaii press) that the ruoia differs deals with the "wars and voyages of heroic individuals".
Split into simpler sentences: The musical origin of this form of dance is not clear. However, Sir Arthur Grimble in his writings the "Tungaru Traditions" (c1989, University of Hawaii press) that the ruoia deals with the "wars and voyages of heroic individuals".