Recently, I’ve told you about my excitement about last.fm.
Slightly later I’ve discovered an interesting service related to last.fm: LastGraph. What it really does? Its auhor, Andrew Godwin says:
LastGraph is a web application that makes graphs of your musical listening history from your Last.fm profile.
In other words, LastGraph creates a special graph that shows what you listened to during the provided period of time. From that graph you can recall bands you listened to and how frequently you listened to one artist comparing to others. The only information you need to provide for this service is your last.fm login. After some time (it can take many hours if you want a graph for a long period of time, like year!) you can download the outcome in PDF or SVG file.
Why not trying it, you’ll get a proof of your music history 
You can view my music history from last few months either in PDF (can get a very close zoom-in) or in the picture below:
