unless i'm missing something, the math on "your kids are gonna love it" checks out.

let's say the chronological age of appreciation for Eddie Van Hallen style is something like 15 - 25, so long as the listener is hearing it for the first time between the years 1974-1985, which is when Eddie Van Halen was in Van Halen and would exist in a world where crazy hair/glam metal shredding was beloved/cool in the music world.

If Cousin Marvin Berry (of Marvin Berry and the Starlighters) had a kid that was born between 1949 - 1970, it works. The actor playing Cousin Marvin was 31 at the time of the movie (1955), so if he had kids at any age between 25 and 46, it works.

but yeah, in a modern reimagining, the "wack music" would have to be something from today that people in the 1990s would have found too far out / unpartyable even when they were young, so like a skibidi toilet and kanye+grimes mashup

he's 3 years early for Johnny B. Goode (1958) so it's supposed to be pointing at a near-future but massive cultural change