"the pop phenomenon".    "pop" is the operative word.    It's actually pretty easy--thank goodness-- to ignore pop phenomena when you're busy with other things.

There's everything from old country singers (long pre-Reba) to doo-wop to singing Brahms, Bach, Mozart, Verdi etc.

And then there's also the rest of life.

But it is interesting to hear about the various approaches to accents.