We all have our music, right? The songs to which we came of age, awakened, realized there were deep emotional currents riding along with those tunes and their underlying rhythms. For a while after she first discovered the music of her own time, my daughter and I shared the radio controls when driving in my car: she’d get her girl pop stations on the outbound trip, then we’d switch to my jazz and classical or singer-songwriter stations on the return. After a while, I realized I was missing out on an opportunity, because to know a girl’s music is to…