Father and son team Thomas and Stuart Mitchell have deciphered a musical score hidden in mysterious symbols carved 600 years ago into the arches of a church featured in "The Da Vinci Code":
Years of research led the Mitchells to an ancient musical system called cymatics, or Chladni patterns, which are formed by sound waves at specific pitches.
The two men matched each of the patterns on the carved cubes to a Chladni pitch, and were able finally to unlock the melody.
The Mitchells have called the piece The Rosslyn Motet and added words from a contemporary hymn to complete it.
Links: Reuters article | Thomas Mitchell's website - Thanks David R!