A Northern Lights Dream is a new operetta by Michael Rose which premiered this last week at Toronto Operetta Theatre in a production directed by Guillermo Silva-Marin. A new operetta is a very rare thing. It;’s just not a form that contemporary composers seem to take to. There’s far too much spoken dialogue for an opera but the musical language; mostly tonal, often quite beautiful but not afraid to get more abrasive when appropriate, is much closer to that of contemporary opera than musical theatre. So an operetta it is.