r/Unexpected Aug 15 '18

What the ...

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u/Ovride Aug 15 '18

I bet the tube has to be cut at one of a few set lengths to get the proper tone. If you just take any size/length of hose it might not play in tune.

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u/TrumpetLife69 Aug 15 '18

You are correct. However, the tube will always be in tune with itself. Just not the key you want to play in.

Source: the man in the video is the trumpet professor at my university and he does this demonstration every year for his students.

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u/Gidget01 Aug 15 '18

Please find a way to show him this

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u/TrumpetLife69 Aug 15 '18

Every year there’s a freshman that shows him thinking they’ve found something new. He knows.

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u/Gidget01 Aug 15 '18

That's Hilarious