“Death whistles,” or Aztec skull whistles, were short, carved instruments made of two opposing chambers where air could clash ...
“This is consistent with the tradition of many ancient cultures to capture natural sounds in musical instruments, and could explain the ritual dimension of the death whistle sound for mimicking ...
“Death whistles,” or Aztec skull whistles ... 11 in the peer-reviewed journal Communications Psychology. “Many ancient cultures used musical instruments in ritual ceremonies.