Quote Originally Posted by Traitorfish
Not really- a band can exist between two r more genres. A genre really has to a true musical movement. A few bands who happen to sound sort of the same, or at least similarly different, do not constitute a genre.
That's why there are sub-genres.

Quote Originally Posted by Traitorfish
Among other things, really good bands change styles, and can't be bound to a single genre.
Yet you can put single songs or even albums in certain genres.

People don't like music because it belongs to a certain genre. They like it simply because they enjoy listening to it. There is, however, a bigger chance that they will like other music similar to what they like, than music not similar to what they like or similar to what they dislike.