On the eve of beginning an extensive touring schedule tonight (Sept. 3) in Boston, Guided By Voices Tim Tobias has left the band for unexplained reasons.

On the eve of beginning an extensive touring schedule tonight (Sept. 3) in Boston, Guided By Voices Tim Tobias has left the band for unexplained reasons. A post on the group's official Web site says only that Tobias will be replaced by Chris Slusarenko for the North American dates and Superdrag's Sam Powers for the European run, beginning Sept. 10 in Munich.

Tobias joined GBV in 1999 and has played on the group's last three studio albums, including the recently released "Earthquake Glue" (Matador). Tobias and his brother Todd were also members of GBV frontman Robert Pollard's side project Circus Devils.

In other GBV news, the five-CD, single-DVD boxed set "Hardcore UFOs" has been set for Nov. 4 release. As previously reported, 25 copies of "Earthquake Glue" were bundled with a "golden ticket" entitling the winner to a free copy of the boxed set. On Nov. 4, Matador will also release the 32-track "The Best of Guided By Voices" and a stand-alone DVD of the 1998 documentary "Watch Me Jumpstart," which will include all of the band's music videos.

Here are Guided By Voices' tour dates:

Sept. 3: Boston (Paradise)
Sept. 4: New York (Irving Plaza)
Sept. 5: Philadelphia (Trocadero / Magnet 10th Anniversary Show)
Sept. 10: Munich (Muffathalle)
Sept. 11: Vienna (Flex)
Sept: 12: Turin, Italy (Hiroshima)
Sept. 13: Rome (Enzimi Festiva Piazza Dei Cinquencento)
Sept. 16: Frankfurt, Germany (Space Place)
Sept. 17: Berlin (Knaack)
Sept. 18: Hamburg (Logo)
Sept. 20: Brussels (Les Nuits Botanique)
Sept. 21: Amsterdam (Paradiso)
Sept. 23: Leeds, England (Cockpit)
Sept. 24: Nottingham, England (Rescue Rooms)
Sept. 25: Cardiff, Wales (Clwb Iforbach)
Sept. 27: Glasgow (Barfly)
Sept. 28: Leicester, England (Princess Charlotte)
Sept. 29: Manchester, England (Roadhouse)
Sept. 30: London (University of London Union)
Oct. 16: Hollywood, Calif. (House of Blues)
Oct. 17-18: San Francisco (Slim's)
Oct. 20: Portland, Ore. (Berbati's Pan)
Oct. 21: Seattle (Graceland)
Oct. 22: Vancouver (Commodore Ballroom)
Oct. 24: Sacramento, Calif. (Harlow's)
Oct. 25: San Diego (Cane's)
Oct. 26: Anaheim, Calif. (House of Blues)