UPDATE - 11/7@5:59PM: Here's a better quality video of the song from last night's performance in Hershey:
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Primus returned to the road this past Saturday night for their first show since January, playing the ExploreAsheville.com Arena as a support act for the final leg of Slayer's farewell tour. Halfway into their set the band busted out a partial cover of Rush's Cygnus X-1 Book One: The Voyage, playing an abridged version of the song's Prologue section as seen in this fan-shot video. Although Claypool often teases a small portion of the song in concert, this was the most complete version of the song that the band has played in nearly 20 years. The band also performed the cover at last night's show in Raleigh, so it looks like they might make it a regular part of their set. Thanks to JamBase for the news.