Noun
English Wikipedia has an article on:aulosWikipedia
aulos (plural auloi)
(music) Any of a class of ancient Greek musical instruments resembling pipes or flutes.
Several authors identify the Ancient Greek askaulos (ἀσκός askos wine-skin, αὐλός aulos flute) with the bagpipe. Source: Internet
The theatre of Dionysus at Athens probably held around 12,000 people.sfn All of the choral parts were sung (to the accompaniment of an aulos ) and some of the actors' answers to the chorus were sung as well. Source: Internet
He had found an aulos on the ground, tossed away after being invented by Athena because it made her cheeks puffy. Source: Internet