TubaForum.net

Ran across this guy having fun in a live Reddit feed. He’s got some multitrack videos up on YouTube where he plays sousaphone, trombone, and trumpet (along with drum machine) and builds the loops live. I found it pretty entertaining.

Here’s an example video:

https://youtu.be/6kkLNSIf79Q

Apologies for the mobile link.

Interesting. I think he's piping the souzy through the machine to alter the sound. It wasn't noise.