I believe it is still quite a hard thing to be truly certain of but there are some indications around. Harmonia Mundi produced an album a few years ago that inc

I believe it is still quite a hard thing to be truly certain of but there are some indications around. Harmonia Mundi produced an album a few years ago that included some ancient Greek music [1]. [1] La Musique De L'Antiquité https://www.discogs.com/Various-La-Musique-De-LAntiquit%C3%A9-Music-Of-The-Ancient-World/release/7290925 https://www.discogs.com/Various-La-Musique-De-LAntiquit%C3%A...