Songwriter/singer Timmy T has agreed to surrender half his copyright on the hit “One More Try,” the result of an out-of-court settlement in a suit over the song’s authorship.Russell Hildreth filed suit earlier this year in U.S. District Court in Los Angeles, claiming that he co-wrote the song and was thus entitled to half the copyright. As a result of the settlement, the copyright registration certificate will be amended to reflect the names of both writers and their co-ownership. Timmy T was previously listed as the song’s lone author. An undisclosed financial settlement was also made. “One More Try” was written in 1989 and became a platinum-selling single in 1990, one of the few independent records in the last few years to make an impact at Top 40. Hildreth’s attorney, Steven Ames Brown of San Francisco, said that Quality Records of Beverly Hills has agreed to list Hildreth as a writer on future pressings of the record. The judicially approved settlement was entered on the books yesterday in Los Angeles.