go backwards towards the source-Classical and everything in between, there is ENDLESS discovery to be heard.
A friend of mine recently asked me why I didn’t expand my musical horizons by embracing new music. I told him I could discover "new" music without listening to anything recorded after 1995. Just yesterday, on this forum, I was made aware of a Tower of Power album from the 1970s that I had never heard. I agree with the OP. For contemporary music, the 60s and 70s were the golden age.