Here’s a fun one: The magnificent Sharon Isbin’s beautiful rendering of Issac Albéniz’s “Mallorca,” performed on TV in 1975, when she was just 18. Of course, she’s only gotten better through the years, but what poise and expressiveness she had at such a young age, too. The competition referred to in the intro is most likely the 1975 Toronto classical guitar competition, where she won 1st prize.