Jem Aswad Senior Music Editor The courtship between art and commerce is a tricky one, but when a brand invests in music in a way that legitimately benefits not only its customers and the artist but people from the artist’s community, it’s good business all around. And at a time when the concert experience can be downright insulting to the customer — most of whom have invested horrifying amounts of money and time with no guarantee of it paying off — it’s even better business to make them feel like they’re flying first-class. “Jack Harlow’s Louisville,” a hometown-themed concert sponsored by American Express and exclusively for card holders, was basically like a large version of one of those corporate events most humans only read about, crossed with a really rich friend’s kid’s sweet sixteen party. It was held at Brooklyn Steel, an 1,800-capacity, five-year-old venue with a spacious upstairs balcony (which was used as VIP for this event) that includes a sunken terrace that’s basically the equivalent of box seats (and was ultra-VIP).