Musical notes encoded in Da Vinci's Last Supper?

Does the Last Supper have a soundtrack? Musician and computer technician Giovanni Maria Pala believes it does and that it sounds like a requiem.

According to his book, La Musica Celata, he "took elements of the painting that have symbolic value in Christian theology and interpreted them as musical clues." Pala looked at the position of hands in the painting and assigned them musical notes, thus creating a composition. He believes Da Vinci left this hidden music in the painting.