Each year many different music services put together a "Year in Music" for their listeners. This year the folks at ListenBrainz decided to get in on this trend and create one for their listeners. What's cool about how ListenBrainz works is that it is both open source and open data. Rather than feeding your data into a corporate hole that doesn't get exchanged with other folks you can download their data set and do your own analysis. They also have imports for Spotify, Last.fm, and Libre.fm so if you use those services you can import your data there (though the Last.fm and Libre.fm imports are sadly still manual).
You can learn more about my year in music. Hope you'll check it out and set up your own account.