For the second year in a row, semi-pro MCs and producers have a shot to get their original music on the NBA 2K12 soundtrack, courtesy of Duck Down Records. The producer portion of the contest kicked off at noon today and runs until April 5. The rap portion of the contest kicks off on April 14 and concludes two weeks later. Interested artists can submit their work at Duck Down's website. Foul-mouthed spitters and beat biters take note: they're only accepting clean and sample-free submissions.