Construction/Deconstruction, based on theme variation form, was selected in october/november 2006 for performance at « les instants vidéos » (festival) in Buenos Aires, in Monte video, Asunción, in Marseille and Paris. The work consists of 16 short movements performed in random order chosen by the audience. The central idea is thematic deconstruction, different in each movement. The transformation of motives, appearence/desappearence of tempo, melodic development, new directions imerging from sustained sounds. The Deconstruction, depending on the movement, evolves from strict written parts to free improvisation. The choice of melody, more or less predertermined, the placement in time, is left to the musicians. The whole musical experience interacting with as many video sequences. An interaction between what is improvised and what is written, what is cultural and instinctive, what is music, what is sound, what is image or what is visual. "Philippe Festou is a unique case. A mischievious eye, a quiet smile. Philippe Festou writes music which is colorful and multi-influenced. Free and independant, he delivers music at it's most personal and most beautiful; A musical voyage in the hands of a serene composer. A stroll, meditation, an obsessional dance, a dream, Philippe Festou suggests all of this, and a little mistery." Régis Campo. Yin was created in 2004 on the initiative of Philippe Festou, a former pupil of composition with Régis Campo at the Conservatoire de Marseille, with a wide experience in improvised music. Philippe Festou has written over 30 works, for string quartet, wind quintet, duo, trio and orchestral works including the "Symphonie Erotique", electroacoustic works and music for dance and video. Linda Amrani : Bb clarinet, bass clarinet Sarah Friedmann : violin Gerard Murphy : Bb clarinet, soprano saxophone Nathalie Festou : flute, piccolo Philippe Festou : guitars, percussions, electronics Nathaly Makeeff : cello.