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Well, @moonhare, I think about your statement, and feel there may be only one way we will ever know. (or in your way of presenting it, NOT.).
I am happy to report that my singing voice (once rather useful and effective) has not stopped me from proceeding (much, I am sure, to the grimaces of some of my friends here). It is what you want to do that counts, and how you do it is just the after effect (on others to hear my Mom complain about me).