After more than nine months of empty stages, live music venues and theaters in the United States—along with independent movie houses—appear to be headed toward much-needed relief to the tune of $15 billion. That help, dubbed the Save Our Stages Act, is part of Congress’s $900 billion COVID-19 relief package announced Sunday. As of midday Monday, lawmakers were racing to finalize the legislative text to send it to President Trump’s desk before government funding lapses at midnight. The money set aside for the Save Our Stages Act would assist live music and theater venues, independent movie theaters, and other cultural...