By Brandy McDonnellToday's featured event:Oklahoma City artist collective Factory Obscura opens to the public today its “Mix-Tape” experience at The Womb, 25 NW Ninth.The creators of the popular temporary attractions "Shift" and "Beyond" unveiled Saturday to passholders, VIPs and media its new immersive 6,000-square-foot art experience at its first permanent location on Ninth Street in Automobile Alley.Starting today, "Mix-Tape" is open for its regular hours to both annual passholders and single ticket sales.