-(이)란 can be used for things other than titles of songs and stuff. It can be used for more abstract concepts, or when you’re trying to be metaphorical or something like that. This often takes the form of [noun] + (이)란 것, meaning “the thing called [noun].” For example: 1. 사랑이란 게 어려워요. = Love is hard. 2. This literally means “The thing called love is...
