Music has had a huge impact on us as people, and will continue to for a long time, most likely forever. It has evolved over a period of thousands of years, perhaps a great amount more. And over that period of time, music has changed forms in numerous different ways. So how many different genres of music exist today? It is extremely difficult to calculate such a vast amount of genres, excluding any possible lost or forgotten genres. However, a man by the name of Glenn McDonald created ‘Every noise at once”, which is a list of the different types of music. The list contains 1,264 micro genres of popular music. As such, this list does not contain every single existing genre, or sub-genre of music, though it does cover a lot of different types of music, both well-known and not so well known.