.:Out.of.the.Blue:. said:lm porbably solved this for you...but notes aren't for any specific instrumnet...it can be any.
EveningStar said:It's an Aulos. A form of double reed flute used in Ancient Greece. The one they showed on screen is designed for coolness. It would actually be divided at the mouthpiece to be V shaped rather than a Y shaped, and it would have been substantially longer.
The real life instruments used to produce the sound were two ocarinas.
EveningStar said:The one in the movie is a prop, designed to look cool. But it's a very impractical design. The tubes have to have separate mouthpieces because it's the sum total of the length of the pipes that determines the fundamental frequency and thus the note produced. The real aulos has mouthpieces side by side, giving the impression of a single mouthpiece.