Pierre Berthet, composer and percussionist, designs and builds sound objects and installations. One of his inventions is the reversed vacuum cleaner. At the end of the tubes of the reversed vacuum cleaners are fixed flexible tubes (bicycle air chamber). When it is switched on, the flexible tube gets in regular motion on the ground. An assortment of rigid tubes of various dimensions are disposed along the way of the flexible tube. The air blowed in the tubes results in sounds. During his residency Berthet will make a piece for a ‘chamber orchestra” of vacuum cleaners.