He is enlisted so that is no glove on his left hand. Looks to be a kerlix bandage. Unable to hold his bosun's pipe in his left hand he uses his right. Left-hand salute is authorized because the right is necessarily engaged.
This enlisted guy is wearing white gloves ...
https://en.wikipedia.org/wiki/Boatswain’s_call#/media/File:Boatswain_piping.jpg
