Trying to recreate the sounds of ancient instruments

Sound of long-lost Ancient Greek instruments recreated by computer experts:

The long-lost sounds of the epigonion, the salpinx and the kithara could be about to form the strangest musical group yet, thanks to the world's largest physics project.

The epigonion, a harp-like musical instrument, was last played in Ancient Greece. But computer scientists have resurrected its sound as part of a project to conjure up an orchestra of long-lost instruments.

They don't know exactly what it looked like but they have used historical sources to re-create what it would have sounded like.

Uh, no.  The only way to accurately reproduce the sounds of these instruments is building them exactly the same way and with the same materials as they would have been built 2,000 years ago.  Anything else, no matter how many computers you throw at it, is mere speculation.