The oldest surviving musical notation so far discovered, dates from c.1950 BC

by Michael Levy

In ancient musical history, once must first distinguish between the oldest surviving written musical notation, and the oldest surviving written melody. The oldest surviving musical notation so far discovered, dates from c.1950 BC - this was a set of musical instructions to play the hymn, "Lipit-Ishtar" (King of Justice), found inscribed in Cuneiform on a clay tablet discovered at Sumer. Basically, this is no more than a quote of specific tuning intervals for lyre, followed by a tuning scale of the musical mode to be used in the Hymn.
Here is a rendition of the musical instructions for Lipit Ishtar, as arranged for solo lyre, by "Ensemble De Organographia" in their album from 2000, "Music of the Ancient Sumerians, Egyptians & Greeks":