The Seikilos Epitaph is the oldest known COMPLETE musical work. It is a Hellenistic Ionic song dating back to the first century CE.
It was found engraved on a tombstone near Aidin, Turkey, with the explanation:
I am a tombstone, an image. Seikilos placed me here as an everlasting sign of deathle...
While you live, shine
Have no grief at all,
Life exisits only for a short while
And time demands its toll
Seikilos released The Seikilos Epitaph on Tue Jan 01 0069.