Read the excerpt from "Music Gets Personal." In 2001, along came the iPod. At the same time , iTunes was in the works. The iTunes store opened in 2003 The store sold songs for 1 each. In the store's first three years, it sold more than a billion songs. Suddenly,ear buds and white cords were everywhere. What is the best summary of this excerpt? The introduction of the iPod and iTunes popularized the digital music age. When iPod and iTunes were introduced, music became expensive. When people were able to buy music online, they bought ear buds. Music fans enjoy listening to songs without any repeats.