e/Rotation (music)

Information
has gloss	eng: In broadcasting, rotation is the repeated airing of a 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. Stations playing new music typically have a short rotation of around four hours, while stations playing "classics" may go as long as eight hours. College radio and indie radio stations often have no particular rotation, only the music director's suggested lists for the disc jockeys, or are totally freeform radio. Broadcast automation systems handle a limited rotation quite well, in turn making voice tracking easy. Even if a live person is present, the automation system at commercial stations usually picks the music ahead of time out of the current rotation, thus the DJ becomes only an announcer.
has gloss	eng: In broadcasting, rotation is the repeated airing of a 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.
lexicalization	eng: rotation
instance of	(noun) medium for communication wireless, radiocommunication, radio

Meaning
Japanese
has gloss	jpn: ヘヴィー・ローテーションまたはパワープレイは、 #ラジオ局（FMが多い）やCS音楽専門局が選曲する推薦曲を紹介するコーナーや番組。 #よく聴く音楽。
lexicalization	jpn: ヘヴィー・ローテーション