Borrowed a friend’s car last week and the Sirius radio channel was on a classic rock station. I liked classic rock plenty back when it wasn’t classic yet, and can still feel that warm pulsing of nostalgia when a Millennial or Gen X wedding DJ finally sees fit to placate the Grayhairs in attendance by playing something dance-able from that era. (I make a habit of imploring them to play Motown; they always nod agreeably but then don’t…) So I listened along a while as the heavily algorithmed playlist churned out standard ’60s-’70s fare from the likes of the Bee…