Beautifully made contrast. Love it! It has been proven that Helga likes Rock Music. It was shown in the episode where Helga and Miriam are going on a trip to North Dakota or South Dakota to visit her mother's house or something like that. She turns the radio on and we hear what sounds like either Hard Rock music or Heavy Metal and she rocks out to it.
We also come to find out in that episode that Miriam was a Champion Bull Rider when she was a kid. I love that part in the episode, because at first Helga thinks her mother has lost her mind by taking their last bit of cash to enter a bull riding contest(the bull was mechanical) and probably felt hopeless as well, but then she hears this commotion from the diner and there is her mother riding that mechanical bull and hanging onto it like a pro and she wins the prize which was a good bit of money and a trophy. It was a really great Helga & Miriam bonding episode. So very nice reference to Helga liking Rock music and Arnold liking Jazz music. We all know that the football head loves jazz.