Having Trouble Installing! (Mac)

Hi thanks @yaxu!
I tried
Quarks.install("SuperDirt") and all working fine.

Wanted to ask you another (hopefully brief) question - in your Ted talk about algorave you spoke about different types of patterning - symmetry, repetition, deviation, interference, etc.
Can you describe what you mean by interference? How would you make a pattern with interference? Do you just mean sounds overlapping, and thus kind of affecting each other?

Thanks again!