ListenBrainz

ListenBrainz is a free and open-source project (similar to Last.fm) that tracks your music listening habits and provides insights into your taste. By submitting your listening data, you contribute to a larger dataset that benefits the music community. ListenBrainz offers visualizations of your listening history, personalized recommendations, and the ability to connect with other music enthusiasts. It's a valuable tool for music lovers who want to understand and share their musical preferences. From the user submitted data ListenBrainz creates several derivative datasets that can be used to build recommendation systems and music discovery tools, free of the bias that is commonly present in closed recommendation systems.