For years Bob Dylan traveled the world on what he called the Never Ending Tour, but like many musicians, he hasn’t played a concert since 2019. And although quite a few acts are plotting tour itineraries for later this year in light of the COVID-19 vaccine rollout, Dylan just announced his first performance in a year and a half — and his first since the release of last summer’s transcendent Rough And Rowdy Ways — will be a livestream.