"In the fifties, young people were delinquents. The younger generation rejected their parents' music, considering it daft and outdated. This may seem hard to comprehend today, with all generations united in their love of heavy metal and rap."
Otherwise, if you are talking about the younger generation of today, then it would be:
"The younger generation reject their parents' music (from the 50's and 60's, which they (parents) still play and listen to on their steam gramophones), considering it daft and outdated."
Where does that leave you?
((Two very angry young men in the forum today, both angry with their teachers!!))
Student or Learner