How many people does it take to light up the AT&T Park scoreboard? Or rather, operate the ballpark scoreboard. The answer: 20! It's technical. One of them is the ballpark dj - with over 2,000 songs to choose from, playing to the crowd, walk-up songs for every player...the classic baseball organ music sometimes too. And 19 others. Plus there's the live feedback from the crowd that influences the plan.