A scene with an old auditorium in the background an orchestra in front playing music and people wearing hard hats in the forefront.
An orchestra is playing music for the construction workers.
The orchestra may be playing music but they might not be playing music for the construction workers. The people wearing hard hats may or may not be construction workers. They could be visitors of a construction site. Also not all  sites that make everyone on site wear a hard hats are construction sites.
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