Seikilos epitaph
The Seikilos epitaph is the oldest surviving complete musical composition, including musical notation, from anywhere in the world. The epitaph has been variously dated, but seems to be either from the 1st or the 2nd century AD. The song, the melody of which is recorded, alongside its lyrics, in the ancient Greek musical notation, was found engraved on a tombstone (a stele) from the Hellenistic town Tralles near present-day Aydın, Turkey, not far from Ephesus. It is a Hellenistic Ionic song in either the Phrygian octave species or Iastian tonos. While older music with notation exists (for example the Hurrian songs), all of it is in fragments; the Seikilos epitaph is unique in that it is a complete, though short, composition.
Oxyrhynchus hymn
The Oxyrhynchus hymn is the only surviving fragment of notated Christian Greek music from the first four hundred years of the Christian period, although historian and musician Kenneth Levy has argued that the Sanctus melody best preserved in the Western medieval Requiem mass dates from around the fourth century. Modern recordings of the hymn have been included on a number of releases of Ancient Greek music.