This winter, Montreal's art district, Quartier des Spectacles, became a space of urban play for the sixth annual Luminothérapie festival. The public space was transformed into an interactive landscape by Lateral Office, firm of Associate Professor Mason White.

Their creation, Impulse, is a series of thirty interactive see-saws that respond and transform when in motion. Each one produces a dynamic light and sound sequence that can be activated and played by the public. The unique set of tones generated by each see-saw was developed by Toronto sound-artist Mitchell Akiyama.

In order to create a unified Luminothérapie concept, the installation by Lateral Office was complemented by a series of video projections by Montreal artists Maotik and Iregular.

As an ever-changing urban instrument, Impulse embodies ideas of serialism, repetition and variation, encouraging public play and interaction.

photos by Ulysse Lemerise / OSA | Drawing by Lateral Office