Around the clock, the software solution we've developed is monitoring websites of hundreds of European radio stations in 37 countries. Whenever possible, the "currently on air" information is collected on 24/7 basis. If this option is not available, we're monitoring the stations' playlists and weekly charts published on their websites.

Once the weekly airplay data is collected, it runs through several formulas. Besides determining the number of airplays for each track, these formulas provide some additional percents for market size, appearance of same track in different regions of continent, appearance on heavy rotations list etc. At the end of this process, the official sales data (physical media and digital download) are used to provide the "finest tuning".

The result: chart that gives the real picture of tracks played on European radio stations in a given week.