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  4. Hulusi: Sound, History & How It Works
Free reeds and interruptive aerophones

Hulusi

The hulusi is a member of the free reeds and interruptive aerophones (Hornbostel–Sachs 412.3). Listen to 3 recordings and learn how it makes its sound.

Listen to the hulusi

Chinese flute Hulusi
0:15CC0 1.0by iluppaiWikimedia Commons
0:15
Hulusi
0:27CC BY-SA 4.0by Subhashish PanigrahiWikimedia Commons
0:27
A small piece of music composed using toy Hulusi samples in a digital instrument
0:22CC BY-SA 4.0by Subhashish PanigrahiWikimedia Commons
0:22

Tip: press play to see the sound's live frequency spectrum in blue over the waveform.

How the hulusi makes its sound

In the Hornbostel–Sachs system, which classifies instruments by how they produce sound, the hulusi belongs to the free reeds and interruptive aerophones: air is periodically interrupted by a vibrating reed or blade – the accordion, harmonica, sheng and bullroarer.

More broadly it is one of the aerophones (wind instruments), where sound comes from vibrating air.

Press play above and watch the spectrum: the evenly spaced peaks are harmonics, and their relative strength is what gives the instrument its character.

From Wikipedia

The hulusi (simplified Chinese: 葫芦丝; traditional Chinese: 葫蘆絲; pinyin: húlúsī), also known as the cucurbit flute and the gourd flute, is a free reed wind instrument from China, Vietnam, and the Shan State, played also by the indigenous people of Assam. It is held vertically and has three bamboo pipes that pass through a Calabash gourd wind chest; the center pipe has finger holes and the outer two are typically drone pipes. It is not uncommon for a hulusi to have only one drone pipe while the second outer pipe is merely ornamental. The drone pipe has a finger hole which allows it to be stopped. Advanced configurations have keyed finger holes similar to a clarinet or oboe, which can greatly extend the range of the hulusi to several octaves.

Other free reeds and interruptive aerophones

Frequently asked questions

What does a hulusi sound like?

Listen to 3 recordings on this page. As one of the free reeds and interruptive aerophones, its sound comes from the way air is periodically interrupted by a vibrating reed or blade.

What type of instrument is the hulusi?

It is classified as free reeds and interruptive aerophones (Hornbostel–Sachs 412.3).

Sources & credits