Rotation (music)

In broadcasting, rotation is the repeated airing of the limited playlist of songs on a radio station or satellite radio channel, or music videos on a TV network. They are usually in a different order each time, however they are not completely shuffled, so as to avoid playing the same song again too long or short apart.
Heavy rotation or power rotation is a term that applies to a list of songs that get the most airplay on a radio station. Songs in heavy rotation will be played many times in a 24-hour period.