This sounds like noise to me:
Mr. Hinkle's Medical History | Jesus the Carpenter
I can not for the life of me recognize any sort of pattern. It's just a bunch of random sounds (to me). Thanks Frown :P
I can recognize repetition of notes in all of these songs:
It's been a long time since I listened to any of this stuff. I was mixed up in what grindcore is exactly, but hopefully these examples will help you understand the point I was trying to make regardless of genre.