It's a new Da Vinci code, but this time it could be for real. An Italian musician and computer technician claims to have uncovered musical notes encoded in Leonardo Da Vinci's "Last Supper," raising the possibility that the Renaissance genius might have left behind a somber composition to accompany the scene depicted in the 15th-century wall painting.

"It sounds like a requiem," Giovanni Maria Pala said. "It's like a soundtrack that emphasizes the passion of Jesus."

Painted from 1494 to 1498 in Milan's Church of Santa Maria delle Grazie, the "Last Supper" vividly depicts a key moment in the Gospel narrative: Jesus' last meal with the 12 Apostles before his arrest and crucifixion, and the shock of Christ's followers as they learn that one of them is about to betray him.