"...Bob Blake is an example of a grey areas,that to me exposes the unsatisfactory nature of the label traditional singer."

Years ago a mate of mine 'discovered' religion and became a bit obsessed by it. He invited a religious fundamentalist type, who claimed to be able to 'disprove' the Theory of Evolution, to address the members of our social circle (well, we were all a bit young and stupid at the time!). This bloke then proceeded to list a handful of anomalies and exceptions in the 'scientific literature' and then claimed that the existence of said anomalies and exceptions 'proved' that the Theory of Evolution must be false and hence the Biblical account of Creation must be true (the fact that the anomalies and exceptions appeared to have been uncovered by the 'University of Hicksville Dept. of Biblical Studies' was, in this particular case, a bit of a give-away...)!

Cap'n, the existence of a few anomalies and exceptions doesn't 'prove' or 'disprove' anything. And remember Mr Yate's wise words, which you yourself quoted at the beginning of this thread:

"Also, many people today want a world of certainties, a world where our every thought and desire can be seen in terms of black and white. But, of course, life is not like that and, kicking against this, we so often find ourselves suffering from the unsatisfactory nature of things."

Could have been written for you, that, Cap'n!