Jean-Jacques Birgé invited 28 improvising musicians to the studio to perform in duos and trios, the theme for each of the 22 recordings chosen just before each recording, with noted performers including Birgé himself, Sophie Bernado, Pascal Contet, Julien Desprez, Jean-Brice Godet, Alexandra Grimal, Sylvain Kassap, Edward Perraud, Eve Risser, &c.

Two guitarists with unique approaches to their instruments -- Paris-based Julen Depsrez and Lisbon-based Luis Lopes -- in an experimental album of evolving sound through extreme modification of guitar sound and sustain, mysteriously building their interactions from whispering sonics to growling harmonics, tightly controlled but bristling with complex energy.