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So, I have a four year old daughter and we've seen Frozen about 4,394,921 times. There is a scene in the movie with a dance band that contains a tuba player, and believe it or not, they actually use a tuba sound to go along with it. Anybody know who it is?

Thanks...

4:06 doesn't look much like Jim. I don't know Doug well enough to say it's him, but between those two, Doug.
Violinist about 3:30 looks like a heavyset (read, normal weight) Tucker Jolly.

Looks like Doug with his head kinda tilted to the side, headphones on.

finally remembering to find photos of Doug, I'd say it is, without a doubt, Doug.

Thanks everyone.