We’ve come to expect films, TV, literature and songs to tackle drug and alcohol use and addiction. But musicals, with their prescribed jollity and often underage audience members, are an improbable medium to tackle such heavy content. Also, the inebriated generally don’t dance a good soft shoe. But as the subject of addiction is no longer taboo—and therefore easier to approach with a little levity—a growing number of intrepid lyricists and directors are going where very few had previously dared. With New York City’s self-promotional “Broadway Week” upon us (September 1 to 14), it seems apt to give props to our 10 favorite substance use musicals.