Led by guitarist Evan Perri, the Hot Club of Detroit are among the 21st century groups that have been updating the Gypsy swing style popularized by the seminal Belgian guitarist Django Reinhardt -- who was only 43 when he died of a brain hemorrhage on May 16, 1953 but continued to influence a long list of disciples more than half a century after his death. Some Gypsy jazz artists of the 21st century are purists who go out of their way to emulate Reinhardt's classic recordings of the '30s and '40s, while others favor a more expansive approach and combine their love of Reinhardt...