". . . But yeah music quality peaked in the 80's - 90's. Most stuff after 2000 is poor quality. 60's and 70's music generally sucked. That said there are exceptions to these general trends and you can find good tunes in any year."

Care to list examples of that "peak music?"

Ask around and I think what you find is that "peak music" for each person occurred during their individual formative teenage and young adult years. You say 80s and 90s; sounds about right. Funny thing, for me it was mostly mid-60s through the mid to late 70s, with more bits added along the way. The part you got right was the end of your last sentence - "you can find good tunes in any year." Not said but implied, is that you can find a ton of not so good tunes in any year.