Most of the week, Turk's Supper Club is a friendly blue-collar joint where you can get a decent burger and a beer for about six bucks. On Monday nights, however, the pool tables are moved to the side to make way for an old-fashioned bandstand and the twenty-person-plus Denver Jazz Orchestra, which uses the historic tavern as a practice and performance space. Led by trumpeter Sam Bivens -- who came to Denver by way of New York City and has spent nearly sixty years as a professional jazzman -- the DJO finds both young and older musicians traversing a repertoire of Big Band-era classics alongside more modern sounds. The free weekly events are simply music to the ears.