From a glass booth behind home plate, surrounded by video screens and digital equipment, Lanier Stewart can sense the anxiety in Dodger Stadium.
After pondering for a moment, he scrolls through hundreds of song titles on a computer.
"We need to pump this place," he says.
The fans have arrived on a Monday night with mixed emotions. The Dodgers are in the National League Championship Series — cause for celebration — but are facing a tough opponent in the St. Louis Cardinals.
So Stewart, as the team DJ, clicks his mouse and starts the ballpark's sound system throbbing with a house remix of "Alive" by Krewella.
"A game like today," he says, "we need a lot of energy."
If baseball has a story to tell, a drama unfolding over nine innings, then Stewart provides the soundtrack, scrambling to find a suitable vibe for the action on the field.
His computer server holds libraries of rock, hip-hop and country tunes. A keyboard to his left controls electronic cues to get fans clapping or chanting.
"To me, a game is like a wedding where you have this panicked and stressful bride who wants everything perfect," he says. "If something doesn't go right, you have to make a move."
Heads bob to the beat of the Krewella song. It is a big night for the Dodgers, and Stewart's work has only just begun.
Forty minutes before the first pitch, Andre Ethier sends an email. The Dodgers outfielder wants to change his walk-up song to the electro pop hit "Royals" by Lorde.
The 45-year-old Stewart — he looks younger with a round face and the thinnest of goatees, a ball cap tugged down on his shaved head — begins searching his database.
"Luckily, I have it," he says. "If I have to download and the Wi-Fi is slow, it can be nip and tuck."
Walk-up songs play for a few seconds before each Dodger's at-bat. It might seem trivial, but it's a big deal to players.
"I choose the music," third baseman Juan Uribe says of his favorite, "Vivir Mi Vida" by Marc Anthony. "Something that says be happy … just to clear my head and to think happy thoughts."
Players switch songs if they get bored or need to break out of a slump. The lyrics must be suitable for children, which often means using a sanitized radio version. There are other complications.
When second baseman Mark Ellis comes to bat in the first inning against the Cardinals, he wants to hear the Celtic soul tune "Hall of Fame" by the Script. The problem is, he tends to rush to the plate. That leaves only a few seconds.
"That's where it takes a little skill," Stewart says. "You have to find the right section of the song and you have to know every batter's walk."
Later in the inning, Adrian Gonzalez waits for his name to be announced before leaving the on-deck circle. His unhurried gait provides ample time for an up-tempo snippet of "El Mariachi Loco" with its flurry of horns.