Of course, a song can contain a story and different moods. For example, a pop song can have ups and downs. The songwriter describes a relationship from the beginning to the present to the future. There will be many possibilities, of course. There are many kinds of moods. You can imagine two people and a group of friends happily sitting together eating hot pot. Although the explanation is a bit rough, as long as it is given a certain meaning, then this word can be used to describe music. I hope it can help. You~O(∩_∩)O~