Aubrey said Wesleyan students are enjoying a new parlor game -- going through music libraries trying to guess what their owners are like. At any one time, 30 or 40 iTunes libraries are available on the campus network, which is shared by about 2,000 students.

"This one playlist had a lot of German techno," Aubrey said. "We predicted this was a kid wearing a mesh shirt who wanted to be a Nazi." At a party shortly afterward, Aubrey recognized the playlist and asked whose music it was. "They pointed to this kid in a mesh shirt with a swastika on his arm," Aubrey said.

When Aubrey showed his own music library to a friend, she said it belonged to a "wimpy, skinny kid who liked to sit in his room a lot, which is myself."

"We were right on several counts," he said.

Students are starting to realize they must manage their music collections, or at least prune them, to maintain their image, Aubrey said. He confessed to deleting a lot of stuff himself.

"I had a lot of show tunes I had to get rid of," he said. "And a lot of punk pop from my earlier days like Green Day and Blink-182."

As well as trimming their music collections, some students are enhancing them, but not always subtly. Aubrey said the campus' resident jazz expert complains that any jazz he talks about instantly shows up on his fellow students' playlists.

"He tells them about something he just heard and then all the pseudo jazz kids have it," Aubrey said. "A lot of people try to be cooler than they are through their playlist. I think people are trying to figure out what is trendy and popular by looking at what's on playlists of people who are cool, and then emulate that."

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