Slub seems to be strange word. I can‘t find any convincing translation to german in my favorite translation machine. Seems to be one of these untranslatable slang words.
However, Slub is Alex McLean and Adrian Ward that produce sequencer software for the Mac and Unix. Quite cool realtime manipulation of loops and tracks. One of these tools that look too complicated when you encounter them but might transform itself in a powerful tool once in a hand of somebody who knows what he is doing. Their music is pretty gabba-rish, loud and fast. Machinery. You can feel it. Perfectly matched by synchronized ASCII art.