Generic Content is music where the title or artist name includes a term or phrase that is being used to confuse or manipulate search results. For example 'Nature Sounds' or 'Rain Sounds' are perfect examples of content which is deemed generic by stores. Stores hate this and they're constantly on the hunt and reviewing content that matches this criteria.
Think we're not being serious? Checkout 2.10 of the iTunes Style Guide. We'll also leave the extract below:
2.10. Generic Artist Names. Generic artists, such as Yoga, Workout, Meditation, Baby, Christmas, Top Hits, Chorus, Orchestra, or Singer are not accepted in any genre. Cast names must be specific to a given show or production. When you don’t have a specific artist name or are working with studio musicians, list the production house, label name, or studio as the artist name.
We constantly reject music because the names of artists or albums are too generic. If you think you call into the 'generic content' category, review your titles and artist names.