Protesters rally against the live entertainment ticket industry outside the US Capitol in 2023. | Drew Angerer/Getty Images This story appeared in  Today, Explained,  a daily newsletter that helps you understand the most compelling news and stories of the day.  Subscribe here . Live Nation will have to face the antitrust music, a federal jury in New York ruled this week, declaring that America’s preeminent concert middleman is an illegal monopoly . This was not news to those of us who’ve attended a concert in the past, oh, dozen years. You could score a ticket to Celine Dion’s comeback tour with all the money I’ve tithed to Live Nation in service fees and charges.  The verdict is an important recognition, however, that all is not well on America’s concert scene.…