Overnight sensation: Goodbye BSO. Hello Pops!

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Each year in early May, Symphony Hall is transformed overnight from Boston Symphony Orchestra concert venue to cafe-style seating for the Boston Pops. Seating capacity drops 10 percent, from 2,625 to 2,365, as tables and chairs replace the fixed leather seats.

For the 2013 Pops season, special lighting and sound systems have also been installed, along with a large movie screen to accommodate this year’s celebration of music from Hollywood films.

How does a large-scale makeover like this happen so quickly? By employing many hands to do the work — and by utilizing a design feature that remains hidden from public view.

“The engineers thought this all out when the building was designed,” said Charles Cassell, the hall’s facilities compliance and training coordinator.

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