"Ellipses dans l"harmonie - Lights in the dark" is the last work released by Teho Teardo on his imprint Specula Records. This work is entirely inspired by the music contained in the pages of one of the iconic texts of the 18th century, the Encyclopédie by Diderot and D"Alembert, the original copy of which is kept in the archives of the Giangiacomo Feltrinelli Foundation, which produced and commissioned the album. This is the first time the Foundation has produced a musical work. In "Ellipses dans l"harmonie", there is not only a homage to the Encyclopédie, but also a political connection to the spirit of the Enlightenment that guided the genesis of the work and the current need for light in the face of the new obscurantism. At the origins of the Encyclopaedia"s cultural enterprise are three roots: memory, reason and imagination. They are three dimensions that draw attention to three needs that still interrogate us today: to know the past in order to understand the origins of the problems we face today; to exercise rational criticism in order to orient ourselves in reality without taking refuge in bewilderment in the face of the complex challenges it poses to us; to continue to think about different balances in order to want to design a different world.