Can you imagine five native Detroiters with a combined total of living 300 years in Michigan who have yet to set foot in the Motown Museum? Holy, Hitsville USA! In late September, the five of us sought to redeem our sorry souls of that musical sacrilege by touring the museum, a small, two-story brick house in the middle of a residential section on Detroit’s West Grand Boulevard. Honestly, this place is a shrine to a magical time in pop history. For good measure, we threw in a Detroit Tigers ballgame as penance to assuage our guilt. (OK, that was gratuitous and mean, even for me.) Sadly, they lost, 7-5. We…