I want to know the answer to the following question:
Along with rap/hip-hop, what genre of music were aging listeners not as interested in?
All the background I'm provided with is that "The growth of AC was a natural result of the generation that first listened to the more "specialized" music of the mid-late 1970s growing older and not being interested in the heavy metal and rap/hip-hop music that a new generation helped to play a significant role in the Top 40 charts by the end of the decade.". Is that enough to answer the question?