A snob is someone who looks down on other because they think they are better than everyone else. This can be based on musical taste, fashion etc.

I think disliking someone simply due to their taste in music is more ignorance than just snobbery.

i like all types of music but music from the Baroque period is my favourite. The only genres of music i really cannot abide are rap, country and the modern manufactured pop music that everyone seems to like for 2 seconds then says its rubbish the next day. I would not call this a taste in music, this attitude to music is simply followings the sad, faddists that only like something because everyone else does and because it is in the charts.

I like music that has a certain measure of 'talent' involved in making it, rather than something that someone who cant even read music has 'produced'.