Pioneer Square has long been a musician's stomping ground. In the 1920s, big-band jazz sounds from legends like Duke Ellington echoed through the Square. Then, decades later, Pioneer Square became the world’s mecca for grunge, where bands like Nirvana got their start. These days, however, a growing housing crisis has made it harder and harder for many musicians to even afford rent in the Emerald City. But a soon-to-open music venue aims to bring more musicians back into Pioneer Square.