and sad songs like `` the lowland sea '' - '' and he crossed his hands upon his breast and he sank to the bottom of the lowland , lowland , lowland sea ... '' of course , `` cape cod girls '' goes over real big here- '' cape cod girls ai n't got no combs , they combs their hair with codfish bones , boys ... '' i sprinkled the act with irish and scottish tunes , too , 'cause that 's where a lot of these people come from originallike , and i go back and forth from fiddle to concertina to pennywhistle , peppering all with dancing .