Hi NonSense, welcome to talkbass. Well tabs seem to be a taboo subject round these parts, so don't be surprised if you get people "all up in your heezy" if you request tabs or ask "how do I play this?" Just a warning. As for Schism, the tab at
http://www.basstabarchive.com seems to be accurate.
Main Riff
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I'm terrible at writing in tab, but that's it more or less.