A musical genre is how people describe different styles of music. Some of the most common music genres are:
Plus there are several more common music genres. Religious music is also common, such as hymns, choir music and many more.
To provide an example of cross genre descriptions; Joe Walsh is to the SteelDrivers as Metallica is to Trampled by Turtles. Furthermore, The Rolling Stones are to Flatt and Scruggs as Nickelback is to Doyle Lawson and Quicksliver.