The iTunes Store at 10: How Apple reinvented the music business: It was only ten years ago—on April 28, 2003—that Apple opened the iTunes Store (then called the iTunes Music Store) and changed the way we buy music. The store arrived with just 200,000 tracks; in the ensuing decade, that library has grown to more than 35 million songs, from the Beatles to Jay-Z. You can even download those tracks over your phone if you want—no computer needed. That was not possible before the iTunes Store opened.