because there is actually no such thing as a genre of music just a lot of people, their skills, their expressions and their inspirations labeling music is a commercial tool, like genres of porn, to help customer quickly find something approximately to their liking music has its history, its context, its developement it is a work of certain people, with certain lives, environment, beliefs and wishes and as a work music has certain number of methods, tricks and decisions which musicians use in some sense predictably, so you can roughly divide music by how it was made but actual music is much, much more than that and some musicians go so far in their art, ideas and expressions--you cannot measure their music in any way really so if you want to find certain music--search for history, for social moods and needs which music met at the time and search for innovators and geeks, who went out of the bonds of a meaning of music at that time because these guys were able to say such things, that are just impossible to be said other, than how they did

Despacito.