‘Forest’ is a large interactive musical laser installation by Marshmallow Laser Feast. This giant interactive forest covers almost 450 square meters and is composed of over 150 musical ‘trees’ made of rods and lasers. The audience can freely explore the space, physically tapping, shaking, plucking, and vibrating the trees to trigger sounds and lasers. Due to the natural springiness of the material, interacting with the trees causes them to swing and oscillate, creating vibrating patterns of light and sound. Each tree is tuned to a specific tone, creating harmonious sounds spatialized and played through a powerful surround sound setup.