Whether you’re an avid reader of these pages, or just a Portlander with a discerning live music landscape radar, it’s been hard to avoid story after story of independent live music venue closures and fundamental business model changes to some of the city’s most esteemed entertainment sites. Over the past 18 months, venerable establishments like Landmark Saloon, Lollipop Shoppe, and The Heights shuttered, while the Fixin’ To in St. John’s changed course, turning its live...