Boston Pops conductor Keith Lockhart gestures to the crowd during the Pop’s public rehearsal on July 3 at the Hatchshell on the Esplanade.

David M. Templeton—The Tech

Boston Pops conductor Keith Lockhart gestures to the crowd during the Pop’s public rehearsal on July 3 at the Hatchshell on the Esplanade. David M. Templeton—The Tech