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The video documents Laptop_Orchestra by Italian interdisciplinary studio Limiteazero, conceived in 2004 as a synaesthetic instrument to create audio-visual compositions in real time. Fifteen laptops, arranged on regular rows, structure the formation of an orchestral group. Each of them has its own sound and it is instructed [by a software] to construct different abstract shapes based on color spectrum. The orchestra plays when visitors touch the metal stems that are positioned on the conductor podium. Thus, they «conduct» the computers in an endless number of different compositions.