Woods: I use only local woods from my region, sycamore mapple, spruce, pear tree, alder, lime tree, boxwood.

I generally propose spruce for instruments table, but more, for arched table (Esquisse, Trilobée...)  I propose maple wood for a warmer sound.

For easier standing play, for ergonomy and the vibration of sound box, I propose to add a back bar:


example of (proto) back bar on Esquisse for easier standing playing

Magnetic capos
Esquisse, Trilobée, Mersenne... are equipped with magnetic sliding capos. The system is simple: the string is passing thru a magnetic button with can slide on steel bar.

Wheel height setting:
This setting allow a quick correction of string/wheel pressure

Electroacoustic or electric vielles


We propose 2 category of sensors:

-piezo sensors: they economic, easy to use, and give good sound when they are well amplified. These sensors transmit wood vibration so its impossible to diferentiate sounds sources (trumpet/ melody/drone).

-magnetic sensors: they are usable on steel strings and on trumpets with a special assembly. So it is possible to put a sensor by string, and to have the sound of a single string on an input.

2 sound system levels

Without preamp:
 piezo sensors withe cable outputs.

With symetriser preamp:
This new preamp was developped for:
-impedance adaptation (better trebble bass balance),
-less noises with symetric signal,
-higher signal for magnetic sensors,
-no battery: it is powered directly by phantom on mix table
4 to 8 magnetic inputs, and 4 to 8 output on special cable.

Hermeline: see  magnetic sensors below melodic strings

   Ovoïde: see sliding capos on steel boards

Historic instruments                                                             

 The creativity of the medieval luthiers is very amazing, and instruments whose inner workings are still very mysterious. Already done, the reconstruction of the vielle painted by Georges de la Tour is my first work in this direction. The biggest challenge was to imagine parts of the instrument not represented by the iconography.

My sources: Vielleur au chapeauRixe de musiciens and Vielleur au chien
painted around 1650 by Georges de La Tour and Manuscrit du Zodiaque (Lyon) from 15th century, in wich the vielle was chosen to illustrate the constellation of the Lyre.

vielleur au chien


vielleur au chapeau

Extract of Manuscrit du Zodiaque (Lyon 15th century) where the instrument was chosen illustrate the constellation of the Lyre.  The fact that the vielle was chosen show us the importance of the instrument at this period. What commonalities between Homer blind, going from town to town with his lyre to sing his poems and blind vielle players of this time such as Georges de la Tour painted them.

Other project: a symphony reconstructed according several sources (for example MS Psalterio Luttrel 1325 below). I tried to design the keyboard as it was during the middle age and not to insert a keyboard as it was invented during 18th century. 

CAD view of symphony reconstruction

MS Psalterio Luttrel