Rap on the knuckles for the new nationalists

Usually, I am a sucker for middlebrow musicals of the Sound of Music and Evita stamp, where you leave the theatre singing,  tunelessly but enthusiastically,  the showstopper tunes.Even if its tunes are not exactly hummable.Hamilton — a three-hour musical — is ostensibly about perhaps the most remarkable and unlikely founding father of the US, its first treasury secretary, Alexander Hamilton.