The music produced during the "XCX World" era is marked by its innovative use of electronic beats, avant-garde synths, and genre-bending experimentation. Tracks like "Break (Interlude)" and "Fallen Fruit" showcased Charli XCX's ability to craft infectious hooks and melodies, while also exploring new sonic territories. Spike Stent's production played a crucial role in shaping these songs, as he brought a level of sophistication and depth to the recordings.