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.
William Dixon manuscript
The William Dixon manuscript, written down between 1733 and 1738 in Northumberland, is the oldest known manuscript of pipe music from the British Isles, and the most important source of music for the Border pipes. It is currently located in the A.K. Bell Library, Perth, Scotland. Little is known of William Dixon's biography, except what has been learned from this manuscript, and from parish records in Northumberland.