Jeez, Don....I used to sing a LOT, but came the time, I'd rather compose, and write for some one else's particular voice, instead of writing a song, and 'everyone' doing it. Some songs work best, for a particular voice, rather than anyone who fancies them self a 'singer'..
just for what it's worth...nothing's etched in stone about that.

I can't feature Andrea Bocelli singing 'Tip Toe Through the Tulips' or 'Philadelphia Freedom'......Wink!

GfS