Sound Installation. multiple nodes, composed of small speakers and microcontrollers are distributed in space and together play harmonies in a coordinated fashion. the nodes improvise autonomously and decentral to centrally conrolled chord progressions. also other formats can be played like MIDI or MXL. Number of nodes 15-25. Microcontroller: Pi Pico W Open Hardware PCB with custom stripboard area. Non-Realtime MIDI-WiFi-port. OpenSource sound synthesis, protocol, protocol generator, Host-SW.