Well, I do have one particular singing experience from the year I turned 13. We were leaving the school where we had spent six years, to join another school for grades 7 through 9. To mark that, we were compelled to arrange a show (with acting and singing) with all our teachers - and parents - as audience. I was told by one of the girls in my class that the song I was supposed to sing would sound better if I raised the key - and stupid me listened to her and did so, with disastrous results. I went right into voice crack territory and gave my classmates something to remind me of for the next three years.