The Memory Lane module opened like a book of vinyl sleeves. Thumbnails of past nights floated in a timeline — names he’d given sets, dates he’d forgotten, a thumbnail from the meteor shower set with a comet-shaped streak across it. He clicked the rooftop thumbnail and the software loaded three tracks: a remixed synth-pop, an old R&B sample, and a club bassline he’d once looped to keep dancers moving when the sound tech left.