That's brilliant, Helen! Apparently, the actual name of the piece is "Paola 11099," and it was used in the movie State of Siege. Here's another recording:

https://www.youtube.com/watch?v=um9xfx0dp4s

This article on State of Seige says Theodorakis later used the same melodies for Canto General
I haven't been able to find sheet music for it, though. It's hard to know what name to look under, since it has been used in so many different ways under so many different names. I suppose that Mikis Theodorakis (1925—) is best-known for the music for Zorba the Greek and Serpico.

-Joe-