Do the yodelers that you have yodel on a regular basis, Andrea? My male, Nicky, does not yodel but has joined in at the National. In fact, at the 1999 Nationals he sat down on the examine table and threw his head back to wail with everyone. It was good that we had a basenji breeder judge that year, she just laughed and called him a silly boy.
My girls will sing all the time. Rally is a natural yodeler and Sam has always encouraged her to sing frequently. Her daughters both join in and when we get home from work are greeted by our lovely female chorus. No matter how often Nicky hears them though, he never seems compelled to join in.
Blondie is the only one who yodels regularlyโฆand she will do it on request if the setting is right. Bella yodels only when she feels it...usually in the morning when she is about to be let out of her crate, or if she is trying to entice another dog to play with her. Her son, Hippo has only yodeled a few times, and almost always at another dog. I think we could probably train him to do it on request, though...
Querk and his daughter, Luna have never yodeled...but can shriek with the best of them. And Ivy yodeled maybe twice in her life, when she was very young, and we had come home from a vacation without her. It was a very gravelly, grodelly sound. Pretty much, I can say that my Select dogs don't yodel, and my Taji dogs do ๐