"Reaction Orchestra" is an interactive generative artwork that offers a virtual reality experience, allowing users to conduct visually stunning Turing patterns produced by the reaction-diffusion system. As users immerse themselves in this digital realm, they gain a deeper understanding of the principles of self-organization, as the patterns emerge from simple rules and interactions. The beauty and complexity of the patterns are both mesmerizing and thought-provoking, inviting users to explore the potential of emergent phenomena in the natural world.