Pu o Hiro

Overview

Pu o Hiro — sometimes translated as “Hiro’s trumpet” — is a perforated basalt stone on Easter Island (Rapa Nui) that functions as a natural aerophone. When a person blows across one of the openings in the stone, it produces a deep, resonant, horn-like sound that carries over a considerable distance. The stone stands at La Pérouse Bay on the north coast of the island and is one of the few documented stone instruments in Polynesia.

Origin & History

The stone takes its name from Hiro, a deity of rain and weather in Polynesian tradition. Local oral history associates the stone with calls used to summon fish into the bay and with weather-related ritual signalling. The exact age of the perforations is uncertain — some scholars believe the holes are largely natural, enlarged by long human use, while others argue for deliberate working of the stone. The site is now protected as part of the Rapa Nui National Park, and visitors are no longer permitted to play the stone in order to preserve it.

How It’s Played

The instrument is played by blowing across one of the openings on the stone, much like sounding a large bottle or shell trumpet. The technique requires controlling the embouchure to set up a resonant standing wave inside the stone’s cavities; once established, the resulting tone is loud and penetrating. The stone produces a small set of fundamental pitches and overtones; melodic playing in any conventional sense is not possible, and the instrument’s role is signalling and ceremony rather than music as such.

Cultural Significance

Pu o Hiro is one of the most distinctive surviving examples of Rapa Nui musical and ritual heritage. Its association with fishing calls and weather signalling places it within a broader Polynesian tradition of acoustic communication across landscapes and seascapes, paralleled by conch trumpets and other natural-form aerophones. As both an archaeological monument and a natural musical object, it occupies an unusual position between geological feature, instrument, and cultural site.

Related Instruments

• Conch shell trumpet – natural-form aerophone used across Polynesia
• Putatara – Maori conch trumpet
• Pu – Hawaiian conch trumpet
• Karawasi – Pacific Islands percussion sibling
• Aztec death whistle – another stone or ceramic ceremonial aerophone

Frequently Asked Questions

Is Pu o Hiro a single named object?
Yes — it is one specific stone at La Pérouse Bay, Easter Island. The name “pu” is also used more generally for trumpet-class instruments in Polynesia.

Can visitors play it?
No — for preservation reasons the stone is no longer played by visitors.

What sound does it make?
A deep, resonant, horn-like tone that carries over a considerable distance.

Image: Pu o Hiro (Trumpet of Hiro), Easter Island, 2018, photo by Joe Ross from Lansing, Michigan, CC BY-SA 2.0 (Wikimedia Commons).

Editorial note: Pu o Hiro is a single named site rather than a manufactured instrument family; it is included here because it is a significant Polynesian acoustic object and is referenced in the project’s source dataset.