Of all the musical pairings I've seen on Montreal stages these past few years, not many have been as inspired as this one: a collision of two of Canada's most enduring punk bands, both of whom have a penchant for twisted humor and social commentary - and surprisingly labyrinthine tunes. With the unenviable task of opening up for two long-standing punk institutions, locals Grand Trine did the sensible thing: they kept it short.