People have posted these links (and those like them) several times before, and this subject has been (is currently being) discussed on this forum to death. I get tired of debunking this stuff. Most of these videos are from people who seem completely ignorant of the fact that musical cliches propagate in all genres at all time and that there is cross-pollination of influences happening all the time too. The claims of the decline of harmony stem from the selection bias of comparing cherry-picked examples of harmonically complex songs from the past and comparing them exclusively to modern top 40, which is a tiny, tiny portion of all the modern pop music out there today. Further, the current top 40 is reflective of trends and genres that deemphasize harmony in favor of focusing on other musical elements. There is already a long thread discussing this so I don't feel I need to try to summarize/reiterate everything here when you can go read through it instead.You're entitled to your opinion of course, but I'm not the only one to notice this trend. You might be the only one who HASN'T.