< Introduction >

A playlist is more than just a list of songs. It is a map of moods, habits, and intimate rhythms. When platforms extract these signals as data, they become part of our digital identity, a computational profile built not from what we say, but from what we listen to.

Playlist visualiser translates a Spotify playlist into a composite visual identity. The system extracts features from the uploaded playlist URL and transforms them into a shifting field of orbs to visualise listening habits. It reveals how personal taste becomes encoded as data, fluid in appearance yet shaped by the simplifying logic of algorithmic classification.