I didn't really hear any other music other than what my dad was working on until I was 12. My recollection of hearing other music was that I liked some things that I heard but I always thought, 'Where's the rest of it?' It didn't have the same amount of detail or instrumentation or imagination in the arrangements.
"Ahu" are stone platforms on which many moai sit. There are 313 known ahu and 125 of these carry moai. The biggest, Ahu Tongariki is 220 m (720 ft), and had the most (15) and tallest moai.