Kochi, Japan · 22 Sales


Kochi, Japan 22 Sales On Etsy since 2012

5 out of 5 stars

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masayoshi yamasaki

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masayoshi yamasaki


Average item review
5 out of 5 stars

ajaxharris on Sep 15, 2016

5 out of 5 stars

Very VERY NICE!!! I want another!! Great size, wonderful sound, ethereal. Thanks

Anonymous on Jun 8, 2013

5 out of 5 stars

Great Service - Thanks <><

Anonymous on Jun 7, 2013

5 out of 5 stars

This tiny hank drum is a marvel of engineering! It's beautiful to look at, and has a lovely, bell-like sound. If you put the included steel balls inside and use it as a shaker, it sounds like wind chimes. I love it!

Anonymous on Jun 7, 2013

5 out of 5 stars

This small hank drum has a beautiful, mellow sound. It's also quite nice to look at, like a Victorian gazing ball. It was packed very carefully for shipping, and overall I couldn't be happier with it. I suspect that Cimantone's clever, little drums may prove addictive!

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2015, Nov,
I succeeded in developing the world's first 3octave hank drum.

2012, Apr,
Hankdrum is a type of a slit drum, originally invented by Dennis Havelena in 2007. It is fashioned from an empty propane tank, where slits are made in the pattern of supportive crossbeams on the noise producing surface of the instrument.

Normally, hankdrum refers to those made from recycled metallic propane tank. However, at cimantone, we do not use propane tanks. Why do we still call them hankdrums? I would like to tell you the reasons here, please bear with me if you have both the time and some room in your heart.

Invention of hankdrums, after all, merely amounted to making crossbeam slits on the bottom or the sides of the propane tanks.

"That is it? A tank was just cut? Besides, if the sound producing face is simply cut in a crossbeam pattern, how does it differ from a tonguedrum?"

You may think that. In fact, I had the same thoughts. In actuality, this seemingly ordinary design was simple, yet, ground-breaking.
The reason being, the previous metallic tonguedrums, like the wooden ones, had slits on flat surfaces.
In this case, the wooden tonguedrums are capable of translating the individual sound producing elements (subsequently referred as, keys) into independent scales. However, when the same architecture is mimicked on metal, even though the sound is produced, the tone resonates together. This is due to the physical properties of metal, where the vibrations are transmitted too easily, leading to large deflection of the material, and as a result, the stroke of one key leads to resonance of the entire drum surface (as interesting as this unique sound is). The man who solved this problem was Dennis. The answer was in the shape of the propane tanks.

In order to resist the pressure of the gas, propane tanks do not have any flat surface.
When the slits are made on a tank, the freed edges become the keys, and the remaining arched parts possess moderate flexibility.
The arched parts are intentionally placed between the keys. This design serves to buffer any unintended resonance between the keys, minimizing the undesired tonal amplification or humming. Additionally, this design allows for tuning of the scales. The unique sounds of the hankdrums are thus produced.

The structure of the hankdrums encompasses both design and functionality.

Furthermore, Dennis Havelena published the blueprint and detailed instructions for his hankdrums on the internet. No patents have been registered. Because of this, numerous hankdrum manufacturers popped up around the world. Cimantone is one of them.

I believe that all slit drums embodying this particular design are "hankdrums," even if they are not made from recycled propane tanks, but instead, made from wood, plastic, or fiber reinforced plastic resin. Hankdrums are often introduced as a "cheap alternative to hangdrums." I do not believe that because, slit drums possess potential for evolution.
In achieving this potential, hankdrums will become an instrument that is completely different from hangdrums.

cimantone / Masayoshi Yamasaki

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Shop policies

Last updated on August 6, 2016
Hello, welcome to cimantone.
We are the manufacture of stainless steel hank drum.


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We arrange the shipment by EMS ONLY.
We ship worldwide. All orders will be shipped shipped from Japan.

Your Items normally shipped 1week-1month business days after payment is cleard.
Except during weekends and Holidays.

日本国内のお客様へは、ゆうパック と ヤマト運輸の宅急便になります。
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PayPal のバイヤープロテクションのポリシーに沿って対応します。