What does alternative rock mean?

Alternative rock is a genre of music that emerged in the 1980s and gained mainstream popularity in the 1990s. It encompasses a diverse range of styles and influences, often characterized by its departure from the conventional norms of mainstream rock. Alternative rock bands typically experiment with different sounds, lyrical themes, and production techniques, creating a more eclectic and innovative approach to music. Notable bands in this genre include Radiohead, Nirvana, and R.E.M.