Okay, this one may seem a bit too obvious to include, but it has to be first! You can’t write a great love song without knowing what love is! Sure, anyone can string words together and set them to tunes, but the best tracks ever been recorded on this subject — and there are a lot of them — have been penned by those who are deeply in love, heartbroken, or somewhere in the middle.
Love songs are, essentially, all about extremes, and you need to live life in order to be able to speak about the subject in a piece of music that won’t just be catchy, but will strike people and resonate with them, staying in their minds and hearts for a long time after they first hear it.