For the last three years, the Smithsonian's National Museum of the American Indian has been mounting one of the more adventurous concert series in town, showcasing new classical music by Native American composers. Admit it -- you didn't know there was such stuff. But as Italian pianist Emanuele Arciuli demonstrated at the museum's elegant little Rasmuson Theater on Tuesday night, there's a little-known world of vibrant Native American music out there that defies categorization -- and deserves to be more widely heard. Take, for instance, Louis ... (more)