@jrosemd I think that 99% of the music being recorded these days is crap - and my three sons, who are all. in their mid-30's - agree. They listen to the same music as me - Beatles, Fleetwood Mac, Tom Petty, NRBQ, They Might Be Giants, Chicago, etc.
It has probably always been true, that a very high percentage of music from every era, has been crap.
Everyone remembers Beethoven, Mahler, Brahms, Weber, Mendelsohn, Schubert, but how many remember the mediocre: Machaut, Ockaghem, William Byrd? Not to mention the dozens of others that we don't have manuscripts of their scores, because they were totally unmemorable.
Do you think: Henry James, Glenn Miller, Tommy Dorsey, Duke Ellington, Woody Herman, Count Basie were the only big bands in the 40's?
Even the eras you mention as being so good, had a very high percentage of crap.
All I know, is within the genres of music I listen to, I have a hard time keeping up with all the great new music being released.