Amid the incalculable losses of the pandemic, live music might seem trivial to some. But at their largest — with thousands of young people, pure of heart and purpose, screaming and stomping, mobilizing air and shaking concrete — concerts can shock, awe and inspire. On Saturday night at the Capital One Arena, a capacity crowd broke its 18-month fast and returned to the collective communion of a live concert, thanks to Harry Styles.
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