Sounds. Convert them to graphics, then fiddle with the display. Suddenly they look like Mandelbrot fractal diagrams.
Sounds can be the most annoying in the world or a way to transform a mood, a day, a week. Music will do it. (This link in particular will reduce me to a joyous puddle every single time.) A voice mail with good news. (You got that job? You’re going to be a grandparent?) A raucous mockingbird going off. (Like the one across the street from us.)
One of my college art teachers said that I was fixated on bright colors at the expense of subtlety. 40+ years later, nothing much has changed.
We Love The Stars Too Fondly 
Have you tried making sonagrams from your bird calls and songs? That would be interesting 🙂
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