Tetere (Māori flax bugle)
From: New Zealand, a Māori taonga pūoro.
Also known as: Pū Harakeke, Pū Kihi
Family: Wind instrument
Description: The trumpet-like tetere was made by splitting a blade of flax in half and winding it into a cone shape. As it was only used while the leaf was green, it is a temporary instrument.
What it sounds like:
https://www.rnz.co.nz/audio/player?audio_id=2508866 (Radio New Zealand)
https://www.nzherald.co.nz/resizer/9TPTrepbnZwBN0_vmTpOrSH8Kn0=/620x349/smart/filters:quality(70)/arc-anglerfish-syd-prod-nzme.s3.amazonaws.com/public/YI47553HSBBUFLXART5MWWJ5FQ.jpg (New Zealand Herald, Flax trumpet strikes chord at Whangārei Museum at Kiwi North)
Usage and historical data: They were used to announce the arrival of important visitors, to warn of an attack and to signal warriors, similar to a military bugle.
Sources: Brian Flintoff, 'Māori musical instruments - taonga puoro - Melodic instruments - the family of Rangi', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/en/maori-musical-instruments-taonga-puoro/page-2