The wooden facade folds back towards the interior, becoming the roof liner that, in turn, folds again at the hall by the ramp to create an inner facade.

木制立面往后折叠朝向室内，成为屋顶衬板，反过来，在大厅被坡道再次折叠，创造了内部立面。

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More than 2, 200 bands turned virtually every square foot of the city into a music hall last year, and organizers promise to ramp it up even more in 2013.

CNN: What to watch for at South by Southwest