Inspector Gadget Cover with a Flute while Beatboxing

So while watching Eric Calderone cover Super Mario Brothers theme song, I remembered this video. This is a few years old but still one of the coolest things I had seen. A flute is not as fun a guitar but add beatboxing it seems less nerdy. I have one question, If you use you mouth to beatbox are you using your nose to play the flute? If so that's just gross.

Oh and he can do Super Mario Brothers too

https://www.youtube.com/user/freedomworksfilms