(October 1, 2015, 2:59 PM EDT) -- CINCINNATI — Alleged owners of a copyrighted song argue in a Aug. 26 brief to the Sixth Circuit U.S. Court of Appeals that a trial court erred in concluding that their company had their copyright interest in the song properly terminated because the court ignored the effect of a post-1978 assignment that is not subject to termination under the Copyright Act (Jackson S. Brumley, et al. v. Albert E. Brumley & Sons, Inc., et al., No. 15-5429, 6th Cir.)....