A Look at Varun's Personal Music Development

I've spent a fair amount of time thinking about how my tastes in music have changed and evolved. A little time in OmniGraffle yielded the chart you see here (enlarge). Obviously this isn't a complete representation of how my musical preferences have changed: there are many omissions in bands and genres, but I tried to capture the key ones from my past and a good list of current ones. There are several songs that I've picked out as pivotal to my development. It's a lot of information, but I'm curious: can any of you trace how your taste has changed over time?