Until I was about 16 years old, there was one station in Des Moines that played rock music: 94.9 KGGO, Des Moines’s best rock and roll. By “best rock and roll,” they meant classic rock. If you were unfamiliar with radio programming terminology, you might think the classic era of rock was the mid to late sixties: Bob Dylan, The Rolling Stones, The Beatles, Jimi Hendrix, Janis Joplin, et cetera. Although these artists occasionally played on KGGO, the station’s wheelhouse was the mid to late seventies: Bad Company, Foreigner, Kansas, Journey, Boston, Rush. These are the worst bands in the history of music. I know, because I have studied their top singles, against my will, for 30 years.