The Tangible Music Lab will organize its first Postdigital Summer School on the topic of Multichannel Instruments. The school is organized as a multidisciplinary workshop between the University of Arts Linz, Bruckner University Linz, the Ionian University of Corfu, the University of Genoa and USJ Macau. The goal of the summer school is the development ideas, prototypes, controllers and instruments for our OTTOsonics multichannel system, which is an opportunity to learn about ambisonics and the tangible interaction design for multichannel sound environments.