"My mother sang Dance To Yer Daddy"
If she'd sung 'Your Tiny Hand is Frozen' to you, would that make you an opera singer?
...
She probably did. But an opera singer, alas no. But I'm talking about traditional songs, transmitted orally in a traditional milieu of family and community as part of its cultural apparatus. I've known the first verse and chorus of Blaydon Races all my life. I learned the other five verses last year, to sing in folk clubs. So can I be a traditional singer and a revival singer in the course of singing a single song?

Any tips on how to be an opera singer?