page_title: Halberstadt
section_title: World's slowest, longest concert
hierarchical_section_title: Halberstadt / History / World's slowest, longest concert
context_page_description: Halberstadt is a town in the German state of Saxony-Anhalt, the capital of Harz district. Located north of the Harz mountain range, it is known for its old town centre that was severely damaged in World War II and rebuilt in the following decades.
context_section_description: A performance of John Cage's organ piece As Slow As Possible began in the Burchardikirche in Halberstadt in September 2001; the performance is scheduled to take 639 years. The concert began on 5 September 2001 with a rest lasting 17 months. On the dates of the sound changes the church is usually well visited.
caption: Sankt-Burchardi-Church
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