In case you ever wanted to know what your music listening habits might look like over the course of a year:
http://alexmiller.info/images/musichistory.pdf
“The poster shows the changing trends in listening history by showing a stacked graph of all musicians that user has listened to over time, and their changing interest in the eyes of that user. The poster is a sort of virtual mirror, reflecting very personally significant events made visible by the changes in listening trends.”
- Lee Byron
Make your own using your last.fm account:
