There are playlists for each of Lexy’s books. You can find them all here. These are the songs that are mentioned in the book. It could be a song that someone uses as a ringtone, or a song that’s playing on the radio, or even a tune Lexy sings at karaoke night at Palmer’s.
But then, there are sub-playlists. That Lexy herself has curated and listens to. For instance, in Griefed Lexy works at her desk listening to “My Boy JT.” In Glitched, Lexy uses her “The Church of Springsteen” playlist to motivate her to finally finish unpacking her new apartment.
These playlists are available on Spotify!