If he found he knew the next word after the snippet ended, he’d shell out the ninety-nine cents for the whole thing. By the end of the first week, his computer was bulging with pop hits of the sixties and seventies. He bought himself a tiny iPod and took it along on his runs, and discovered that the pleasure of the music convinced his legs to keep moving.

As his quest went on, Henry found himself moving away from top-40 singles. Apparently the radios blaring in the background of his youth went in for album cuts as well. And this is where his life changed.

The album was called Who’s Next, and he had downloaded it because he recognized a song about what it’s like to live without ever being truly understood-didn’t this exactly match what he’d felt in his teens? If he’d just bought the single he might have listened to it a few times and moved on to “Dark Water” or “Joy to the World.” But he was doing albums now, so he hit the song that followed “Behind Blue Eyes.”

There was no chance that the teenage Henry Spencer would have put up with “Won’t Get Fooled Again.” An anthem blasting all authority as corrupt was simply not something he would have been ready to accept as he dreamed of a life in blue.

But as an adult, Henry was secure enough in his beliefs that he didn’t need to engage a thirty-five-year-old pop song in a political argument. He was caught immediately by the opening guitar chord’s transition into that hypnotic synthesizer riff, and then the crash as the bass, guitar, and drums all kicked in at once. He knew this song. He’d heard it over and over and over again, and somehow he’d never noticed it until this very moment.

It wasn’t until the time counter hit the seven-and-a-half-minute mark that Henry realized he was in trouble. He’d been listening while he was washing the dinner dishes, shuffling his feet roughly in rhythm with the tune, when the guitar, bass, drums, and vocal all dropped out again, leaving only that hypnotic, repeating synth line. Henry was scrubbing a plate when Keith Moon’s drums kicked in.