Indie pop differs from indie rock to the extent that it is more melodic, less abrasive, and relatively angst-free. Wikipedia
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The term indie is sometimes also used to describe a genre (such as indie rock, indie metal or indie pop); as a genre term, ``indie'' may include music that is not independently produced, and most independent music artists do not fall into a single, defined musical style or genre and usually create music that can be categorized into other genres.