While attention was focused on Singapore’s exclusive deal to host Taylor Swift’s Eras Tour concerts and Lionel Messi’s absence from a Hong Kong exhibition march, the city’s jazz fans were excited at a planned visit by three times Grammy Award winner Diana Krall. I share the disappointment over Messi and Swift even though it had nothing to do with me. Krall is another story: I texted my friends about the concerts. Her live appearance in Hong Kong is a mega event, as important as an LVMH fashion show in Tsim Sha Tsui or a Mirror concert. Then I was taken aback to learn that the concert will take…