Sound in a flute is formed to a large degree by the material of the tubing. This is governed by the physical properties of each metal (e.g. Hardness, density, specific mass).

metal 925


925 silver: Most commonly used precious metal in flute construction - also known as Sterling Silver. This is an alloy of 925 parts of pure silver and 75 parts of copper. The copper is necessary to give silver its hardness so that we can use it in objects. Silver Eloy flutes have a wall thickness of 0.35mm, resulting in a warm and bright sound that carries well. The head joints have a slightly thicker wall: 0.38mm. This gives a balanced sound without loss of quality through all registers of the flute.


metal noble


Noble silver: This silver alloy is specially made for Eloy flutes. Instead of copper as an additive to harden the silver, Eloy flutes has after long research chosen to add only precious metal to the silver. The proportions in Noble silver are 850 parts silver and 150 parts noble metal, which is for the most part gold. The exact composition of the 150 parts which are added to the smelt we do not make public, but the influence it has on the overall sound is clearly perceptible: Noble silver gives a velvet like touch to the flutes timbre. An additional advantage is that the surface of this tube cannot tarnish and therefore stays shiny.


metal gold

14 carats red gold: The density and hardness of gold is higher than that of silver and gives as a result a full, dark sound.


metal mokume


Mokumeum©: A flute made out of Mokumeum© has a special and unique sound. Mokumeum© is produced in two forms: 925 silver with either 14 carat red gold or 14 carat Palladium white gold. Normally, metal alloys are homogeneously mixed. With Mokumeum© the metals are mixed along side each other variably. This gives a special hardness and density to the metal. Also the forming of the sheet metal into tubing alters the specific properties of separate precious metal components from which Mokumeum© has been made. As a result, the properties that can be found in silver and gold flutes are brought together in one instrument. Both the clear warm sound of silver and the darker full tone found in gold flutes come together here. The harmonic spectrum found in an instrument made out of Mokumeum© is unique and cannot be compared with any other flute!

Mokume gane:

mokumegane jp

A centuries old technique, of Japanese origin, whereby, under heat and pressure, sheets of different kinds of metals are piled up and fused together. This produces a solid plate of merged metal.

This laminated plate of metal is then worked. In the surface, holes are drilled in a random pattern, random diameter and/or depth. Other versions are also conceivable: grooves, ellipse shapes etc.

Now the sheet is milled down or forged with hammers and becomes stretched out. Deeper located layers of metal come to the surface and leave characteristic patterns: Mokume gane or wood grain structure.

Mokumeum© : Mokume gane in flute tubes:

A tube made with the Mokume gane technique has a unique structure: each tube has a unique composition and also therefore a unique sound. This concept has been patented by Eloy flutes Ltd and is only found in their instruments.