I found this while looking around for stuff to play. The description explains that

Danny Heifetz (who made the tab) is a drummer, because "no bassist in their right

mind would dream it up."  It is basically two chromatic scales starting an octave

apart (C#) and collapsing (one ascending, one descending) to a unison (F#).



|—————6———5—————4—4————————————————————————————
|———7—————————————————8———7———6————————————————
|———————4———3—3—————5———6———7———8———9—10—9—8—9—
|——————————————————————————————————————————————



Original source: http://www.trevordunn.net/geek.html

He also explains how to play this.



 bigbasstabs.