I'm no mathematician and don't understand the principles behind many of the weird and wonderful programs like Metasynth, Supercollider, Soundhack etc. I simply gather the sounds that please me and the rhythms that excite me and try to throw them together. If I understood all of these mathematical principles, do you think I'd create interesting tracks? Maybe yes. I wouldn't say my tracks now are brilliant by any means but they are what I want to make and listen to at the time they are made.
I liken my noise & music making to some kind of painting. I usually throw a large amount of 'paint' on the 'canvas' and watch while a great deal of it falls onto the floor. I then spread what remains on the canvas so that certain colours come through and others are obscured. Sometimes, points of light poke through. Sometimes the canvas is naked with blocks of black slammed down hither and thither (is 'thither' a real word?).
There are many canvasses lying in the dust on the 'studio' floor. One day I'll blow off the dust and put them back onto the easel to see if I can rescue anything. Maybe the paint will still be wet in places. I suppose I could chip away at the paint and break a few bits off. Maybe I could leave empty patches or add a bit of new paint. Perhaps blend a new colour.
But then perhaps, one day, the brushes will be unusable, stiff or broken. In which case, I shall use my fingers and hands.
By the way, I don't like using spray paint.