Is there a lot of loud music and flashing lights? My son does not like sensory overload

Avoid blue man group then. This one can be loud but more manageable. Great Show.

Not loud, it is kid friendly. My 5yo son is sound sensitive too, but he loved it

Not too bad.

Ots not too loud but it can be a sensory overload. Most of the noise and lights are during the beginning and ending of the show.

I don't remember the music being loud or any sort of flashy lights.