I totally agree, music has gone down hill lately. That's not to say you can't find good music these days, for example I bought an Adrian Belew ( King Crimson guitaritst) solo cd and it kicks some major ass. You have to look outside of the mainstream shit. Even stuff that rivals alot of the 70s music (best era of music imo) such as Radiohead, Dream Theater or Tool (Pretty much the Led Zeppelin of the 90s/00s) and that's not even listing more underground bands. As you can tell im really into progessive.

My point being you just have to look. Unless you look harder, all you're going to find is the complete and utter shit that is modern mainstream music