Performing artists and art students ‒ some banging drums, playing trumpets and dressed in clown outfits ‒ gathered outside Greece’s parliament Thursday during a strike that closed theaters, halted TV shoots and disrupted art school classes. More than 2,000 people took part in the demonstration, on the second day of a 48-hour strike to protest changes in a government labor qualification system used to set wage scales and for civil service recruitment.