A note to those who feel, not without merit, that popular culture is getting so stiflingly politically correct and even “woke” that it is being strangled to death: In 1989, when I published my book “Jazz Singing,” I used the term “canary” in reference to female big band vocalists. Frankly, I was then astonished that many reviewers took umbrage at that term, calling it — and me along with it — chauvinistic and even sexist.