It's Finished! The Homemade Superbone
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Vienna Valves, Perinet Valves, and the Valve Trombone
5:38
A REAL SUPERBONE!!
7:31
My 6-Valve Cavalry Trombone!
6:16
James Morrison trumpet virtuous
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I made a 4-Valve Trumpet!
7:56
How A Trombone Is Made | How Do They Do It?
21:03
I Destroyed a Trumpet While Trying To Fix a Valve
11:09