Elias tapped the screen, where the VirtualDJ logo still pulsed. "In the Infinity version, there is no end. You just keep building."

By 4:00 AM, the lights flickered on. The legendary promoter approached the booth.

He stared at his screen, where the neon-blue interface of glowed like a cockpit. To others, it was just software. To Elias, it was an instrument.

The city of Neo-Berlin never slept, and neither did Elias. In his cramped apartment, surrounded by stacks of vinyl and tangled MIDI cables, he felt like a relic. The world had moved on to sleek, automated streaming, but Elias still believed in the "Infinity"—the perfect, endless transition between tracks that could control a crowd's heartbeat.

Elias packed his gear, the glow of the 2021 interface still burned into his retinas. He had found his pulse in the machine.

That night, he had been summoned to "The Vault," an underground club built into an old subway station. The rumor was that a legendary promoter was in the building, looking for someone who could play "live" in an era of pre-recorded sets.

The crowd didn't just dance; they surged. The Infinity engine kept the beat-matching so precise that the music felt like one continuous, evolving organism. He wasn't just a DJ; he was a surgeon, cutting and stitching frequencies in real-time.

The promoter nodded, handing him a card. "See you at the festival in June. Bring that machine with you."