Aulos

an ancient Greek wind instrument, a double pipe played with a double reed.
Historical Examples

The probability is that both single and double reeds were at times used with the Greek aulos and the Roman tibia.
Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 4 Various

How then about makers of the flute (aulos) and players on the flute?
The Modes of Ancient Greek Music David Binning Monro

On a mosaic of Monnus in Trves10 is represented an aulos which also appears to have a beak-shaped mouthpiece.
Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 8 Various

The bore of the aulos was very much narrower than that of the clarinet.
Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 4 Various

This is more fully explained in the articles Clarinet and aulos.
Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 3 Various

A similar or still more rapid development took place in the flute (aulos).
The Modes of Ancient Greek Music David Binning Monro

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