Can you see sounds? Over a vibrating surface, sand or powder arranges itself into a symmetrical pattern, like a snowflake. You can use these cymatics effects to make fine art.
Try it at home with a DIY sound plate – or with a bit of sand on top of your subwoofer.
The genre of minimalist poster is accessible and popular, so you can easily make your own. Here are some beautiful examples from Emma Megan Moore.