I don't profess to have music as my big wheel and there are a number of other things as important to me apart from music. Theatre and mime, for instance.
"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.