Sheik To Sheik is the kind of film that was an average short subject with some original music with it that could never be made today. Musicals just cost too much even a 20 minute short
Georges Metaxa who had a couple of Broadway shows to his credit like The Cat And The Fiddle and Revenge With Music moved to Hollywood, but never had that kind of success. He settled into non-singing roles in a lot of B pictures.
I'm betting RKO did this musical short fantasy to showcase his vocal talents. Comedian Johnny Berkes while golfing is caught in a sand trap when he's banged on the bean with a ball. Berkes dreams he's in the Sahara where he encounters Metaxa as a Foreign Legion lieutenant and Richard Rober as a sheik.
Berkes tries to sell both sides radios. Of course there's a limited amount of electrical outlets in that territory.
Sheik To Sheik is silly, but pleasant nonsense and it's no pain to be watching it.