Music + Maths = Chladni Pattens

Chladni Patterns are patterns created when you pour sand or flour onto a plate and resonate it with a musical tone. The tone usually comes from bowing the plate or using a electronic tone generator.

Meara O'Reilly uses her voice.

What I love about about this video is how she changes the patterns from soft and blurry to sharply defined just by modulating her voice.