hmmmm, disagree

Wouldn't call it "randomly hitting shit hoping for something good"

A random pattern generator is never going to make anything good. It will make something random. A person can take an idea from a random pattern and make it into something good.

Once you've got something down, you can shape it, mould it, come up with new ideas, ditch old ideas and end up in a completely different place to where you started.

Don't make music if you're not in the mood, sure. But sometimes you want to make stuff, but don't know where to start. I rarely have ideas in my head that I want to commit to music. Much more interested in sitting down and seeing what happens, and shaping it as I go along.

And if you don't like the result, abandon it and move on. You learn something everytime you sit down and make a track. What not to do next time, a nifty little trick, maybe try something new etc. If you don't work at all you aren't improving or developing.