A Scottish church which featured in the best-selling novel "The Da Vinci Code" has revealed another mystery hidden in secret code for almost 600 years.A father and son who became fascinated by symbols carved into the chapel's arches say they have deciphered a musical score encrypted in them.Thomas Mitchell, a 75-year-old musician and ex-Royal Air Force code breaker, and his composer and pianist son Stuart, described the piece as "frozen music.""The music has been frozen in time by symbolism," Mitchell said on his Web site (www.tjmitchell.com/stuart/rosslyn.html), which details the 27-year project to crack the chapel's code."It was only a matter...
