(Hoo Boy, this place is due for some new material!)
I’ve gotten really interested in “oscilloscope music,” which is sound generated expressly for the purpose of drawing on oscillosocpes. A fellow named Jerobeam Fenderson got me started down that road. One of the ways people are making “OM,” is with a program called Pure Data, which is a graphical interface for interconnecting pieces just like a modular synthesizer, except it’s more like building a city with individual molecules.
It’s a fact of trigonometry, that if you plot a sine wave on the y-axis of an X/Y oscilloscope, and a cosine wave on the x-axis, you will get a perfect circle.
Interesting things happen when you mix these pairs with ones of different frequencies.
I went “scope crazy.”
And then I revised the patch a little bit and made some more:
I now have this running on a Raspberry Pi, so we’ll see where this goes.