Reverse cymbals, white noise sweeps, and "risers" that build tension before a chorus.
In audio engineering, ear candy refers to small, unexpected sounds added to a track to keep the listener engaged and prevent boredom. Think of it as the "frosting" or "sprinkles" on a song cake.
Unique sounds like pedestrian crossing beeps (as heard in Billie Eilish’s "Bad Guy") or "silver sounds" like high-pitched synth twinkles.