This also means that I own all of my music, play it from a server I control, using storage I control, via a client I’ve written and all of the data is stored on my own infrastructure. I author my own charts and can do as much or as little as I want with the data. I enjoy being able to view my own listening habits and run whatever granular queries I want. I’ve integrated concert tracking with artist pages, I’ve added support for tracking upcoming albums and exposed a calendar subscription.