J1407b is a planet in the constellation Centaurus whose massive ring system consists of over 30 rings - each of them tens of millions of kilometers in diameter (roughly 200 times larger than Saturn’s rings are today). The ring system likely contains roughly an Earth’s worth of mass in light-obs- curing dust particles. Remarkably, rapid changes on time scales of tens of minutes are obversed — and the result of fine structures in the rings.J1407b is a work-in-progress, an ever growing improvised composition conceived for modular synthesizer. The focus is on the long form alternating blocs and musical textures, which vary from feedback drones to field recordings. Like the continuous accumulation process observed within this system, zones of matters, particles and dust are clashing against each other and gradually morphing into another.