looking at sound 

Yellow trace is a Taiga oscillator in square-sine mode, meaning a square wave that folds into sine shapes. It is being folded and unfolded, while also having its frequency modulated
Listening to the blue wave, which is sent through Taiga filter on low pass mode, with the resonance tuned high. The frequency cutoff sweeps back and forth from high to low and back. Having the resonance high amplifies the harmonics, as they are being filtered
The three modulations (oscillator frequency, osc fold amount, filter cutoff frequency) are coming from the x, y, and z of the Zlob Diode Chaos module, wonderful strange attractor patterns