EXCLUSIVE: Paradise Square, the new Broadway-bound musical from producer Garth H. Drabinsky set during the history-making New York Draft Riots of the 1860s, will arrive at the Barrymore Theatre in February with several news songs added since its 2019 West Coast incarnation, including an anthemic new musical number that can’t help but summon thoughts of the galvanizing response to recent racial discord: The new number is called “Breathe Easy.”