Rebecca Infantia Sandra V has two examples published here, including Spotify.
Improving Product Sense · Entertainment
Voice-Controlled Mood Playlist Creation to Boost Spotify Engagement
Research into why Spotify listeners cannot quickly find mood-matched music, and a voice-led fix
Meaningful AI Improvement · Entertainment
Voice-Activated Mood-Based Playlist Creation for Spotify
Voice to Playlist, a mic on the Spotify home screen that turns a spoken mood into a playlist
Read a few side by side
The fastest way to build product sense from this library is to compare two people who took the same product somewhere different.