In Thomas Pynchon's book "Bleeding Edge," the theme of transition is encapsulated in the choice of recessional music, specifically the song "Closing Time" by Semisonic. This four-chord song serves as a poignant farewell to the past, symbolizing the end of an era and the uncertainties of the future as a new century begins.

The selection of "Closing Time" reflects the book's exploration of change and nostalgia. As the characters navigate through a shifting landscape, the music underscores the emotional weight of leaving behind what is familiar while stepping into the unknown, making it a fitting accompaniment to the story's themes.