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.
Anonymus Bellermanni
The Anonymus Bellermanni is a collection of material on music, by one or more unknown authors, transmitted in a number of Byzantine manuscripts and first published by in 1841. Martin West comments: "It is drawn to a marked extent from Aristoxenus and Aristides Quintilianus but contains some valuable matter not found elsewhere, including half a dozen little instrumental tunes and exercises." Along with four poems attributed to Mesomedes, and not counting various fragments on papyrus, it is one of the only examples where a piece of ancient Greek music has survived in the manuscript tradition.