The Radiosphere of Earth extends about 70 light years out. That means that, for stars within this sphere of influence, radio and television transmissions from the past 70 years have already started arriving.
Coincidentally, Billboard have been keeping track of the chart-topping songs for the past 70 years.
Wouldn't you like to know which of these number one hits, broadcast by Radio Free Earth, have reached which stars?
Radio Free Earth is a personal playlist for the planet.
Musica! Ad astra!