I’m a JJ Cale fan. Have been for many years. I was listening to an interview with him, where he was asked why he places relatively less emphasis on vocals than most other producers (he apparently produces his own music most of the time). His answer was that he didn’t like his voice, so he deemphasized it.
He was then asked how he gets this sound like he is backing himself up, like there are two of him. He replied that his singing is also pitchy, so he overdubs it (I think was the term), so the flats and sharps cancel out.
In trying to avoid the consequences of having an outstanding song-writing ability but poor voice, he achieved a style which is distinct, and which I (and many others) really enjoy.
So many stories in the world. Would that we could live long enough to hear more than a fraction of them. This is not a world of triangles. No one need fear that. What we need fear are the people who cannot live without them.