What's the instrument used in 'The Office' Theme song?!

Question: In the American version of The Office, what's the instrument that plays the main part of the song? It sounds like bag pipes, but I'm not sure.

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Answers: In the American version of The Office, what's the instrument that plays the main part of the song? It sounds like bag pipes, but I'm not sure.

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piano and a harmonica

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I don't know, but it sure is cool!
The Office is #1!

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It's just a synthesizer that's set to sound like an accordian.

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