High Quality Content by WIKIPEDIA articles! Rhythmic Oldies is a radio format that concentrates on the rhythmic, disco or dance genres of music. Playlists may span from the 1970s through the early 1990s. Depending on market conditions and playlist, the format may have a significant African-American or Hispanic composition. The format is also referred to as "Jammin` Oldies" or "Music From Back In The Day" by various radio stations.