System 002. Pendulum Each of the hang’s 20 notes has its own pendulum. Each hit adds momentum, making it swing wider; without playing, it gradually stops. The musician shapes the movement by adding impulses to specific notes, controlling the pendulums’ synchrony and amplitude.

System 001. Thread Geometry Each note is a point, arranged like on a hang. Consecutive notes connect with threads that fade over time. By choosing note transitions, the musician can draw shapes—stars, triangles, or cyclic webs—and build the melody’s geometry through playing.

The world's first projection onto a mountain with hang drum accompaniment in Haifa :) Custom WebGL/GLSL, real-time — custom shapes feeding a reaction-diffusion system.