Our underwhelming non-attendance aside-- I did get some people to give me some insights into what music they were loving, during their senior year of high school.
I guess, I have always thought of it this way:
I will have to say my musical taste was very elective even in high school. I refused to get pinned down into one specific genre. I did not care for rap particularly, had no use for country music and the boy hair bands did not hold my attention for more than a few minutes.
I guess what I have learned from this exercise is we may have a favorite song, but it gets replaced with a new favorite song and a new favorite song. We may not remember the song that we just couldn't get enough of back in the day. Perhaps music is important to us, but particular songs fade quickly into a sea of notes.