Juliette Lacroix (cello), Thomas Lachaise (saxophones), Guillaume Ladain (analog synth), Frédéric Roumagne (electric guitar), Jean-Marc Reilla (analog synth, electronics), Didier Laserre (snare drum & cymbals), Julien Sellam (violin), Laurie Batista (vocals), Yann Saboya (electric guitar), Johann Mazé (drums), Eric Camara (bass), Jean Rougier (bass), Tanguy Bernard (tuba), Delphine Lafon (vocals), Bruno Laurent (bass), Claude Saubole (acoustic guitar), David Chiesa (piano frame), Johann Loiseau (flute, small percussions), Thomas Dubois (trumpet), Mathias Pontevia (horizontal drums), Christophe Ratier (bass clarinet), Guylaine Cosseron (vocals), Guillaume Flamen (tuba)...these are the overlapped names (and the instruments they respectively play) on the cover artwork of this enormous ensemble. It includes just six (more or less long-lasting) improvisational sessions, but both the quality of the recording and the almost theatrical vividness they collectively reached is astonishing. Before now, I only knew the name of David Chiesa, who signed a couple of sessions: an amalgamation of dynamics, timbres, resounding matters and musical quotations that he tried to organize over a time line in the exciting piece "Masses" and "The Blue Yonder", the longest session of the whole release, named after and inspired by an half-fake documentary about Werner Herzog, where a set of images taken from the archives of NASA and an Antarctic submarine exploration station go along with the interview of a fake alien, telling the story of its journey to reach out planet from his ocean-covered one and explaining its project of a giant shopping centre between two railways. The overlapping cartographies over three levels (stars, earth, and seabed) provided the instructions (including temporalities and heights) to the playing orchestra! Even its subject could be somehow demeaning, one of the most impressive session is "L'Acceptation d'Elisabeth", the opening one, which refers to the five stages of grief (denial, anger, bargaining, depression and acceptance), described and detected by Swiss-American psychiatrist Elisabeth Kübler-Ross in self-named model: the way by which they musically translated each stage is just astonishing and so vividly that it seems they managed to bridge that gap of verbal incommunicability of a person who sadly experiences them. In between the last mentioned sessions, there's a tribute to the memory of the French brilliant bass player Bernard "Beb" Guerin, where its director, Didier Lassere, tried to turn his orchestra into a sort of "humanly heated synthesizer" - as described in the inlay -, by playing on overlaying, appearing and disappearing orchestral sonic blocks. Such a sonic organization reminded to me the one adopted by Urban Sax, another conceptual orchestra led by Gilbert Artman, who involved Beb Guerin in some of its spectacular sessions. The rule of the game in Bruno Laurent's "HEIN!!!", the shortest output by UN, is likewise bizarre. The orchestra got divided into smaller groups of six players, each of them only knew the game mode and each player had to find a strategy to go from a mode to another on each instrument in a relevant manner...you could vaguely imagine how unpredictable are this interchanges. Another crazy idea is the one behind the final suite "Tenir par là: 174,6 Hz et ses multiples", where everything orbits around the frequency quoted in its title - the first of the 7 major solfeggio frequencies and, according to music therapists, the frequency that could activate DNA, muscles and organs in general by inducing them to operate at optimal performance! -, resulting in a fantastic piece where musicians turns into listeners as well and seems to contribute to the maintenance of this beneficial frequency using their breath and muscles as well.