Top 40 Tracks is a defunct airplay chart from Billboard Magazine. It was created in 1998, when Billboard Magazine changed the airplay profile of The Hot 100 Airplay to include more R&B, Country, and Rock stations to its profile (thus reducing the profile of its Pop stations). To preserve the notion of the former chart, Top 40 Tracks was introduced. The Top 40 Tracks consisted of Mainstream Top 40 audience impressions, as well as Rhythmic Top 40 and Adult Top 40 audience impressions which had previously broken off from the Mainstream Top 40 chart.
Unlike The Top 40 Mainstream, The Top 40 Tracks (like the Hot 100 Airplay) was based on total statistical impressions, not total detections.[clarification needed] The Top 40 Tracks chart was replaced in March 2005 with the Pop 100 Airplay chart.
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