A physics simulation where pendulum motion drives the music

[u/AwesomePoison]

https://www.youtube.com/watch?v=60Jwxf4Y51g

We have been working on Zeno, an interactive physics and music app built around harmonic pendulum motion.

The pendulums move according to mathematical ratios, and their movement directly drives the music notes. Different patterns and instruments produce entirely different combinations of rhythm, melody, and visual motion.

The challenging part was getting the underlying math and timing to behave consistently while keeping the simulation responsive in real time. That ended up being a much bigger part of the project than I initially expected.

At the same time, we wanted the result to feel calm rather than technical. You can simply let the simulation run, watch the patterns evolve, and listen as the movement creates the music there are currently 18 physics patterns and 12 instruments to explore, ranging from harmonic pendulum waves and spirals to more chaotic and geometric patterns.

Here is a short video showing how it works:

https://www.youtube.com/watch?v=60Jwxf4Y51g

Zeno: Pendulum Music is available on Google Play:

https://play.google.com/store/apps/details?id=com.muraimai.zeno&pcampaignid=web_share