the top forty music hit juke Box www.thetopforty.com

The Top 40, or top forty, whether surveyed by a radio station or a publication, was a list of songs that shared only the common characteristic of being newly released. Its popularity coincided with the rapid changes in recording technology in the 1950s and 1960s. In 1954, the recording industry agreed upon a standard recording format for higher fidelity music, so any new record player could play any new record. Also in that year, new single records were released on 45 rpm records, and the Top 40 thereafter became a survey of the popularity of these records. Tape recording had become perfected, allowing artists more freedom as they composed songs, especially novelty songs.