Judy Dyble: Judy Dyble. Self: Untitled Sound Techniques Documentary. Judith Aileen Dyble (pronounced Die-bull) was an English singer-songwriter, most notable for being a vocalist and a founding member of Fairport Convention and Trader Horne. In addition, she and Ian McDonald joined and recorded several tracks with Giles, Giles and Fripp, who later became King Crimson. Fairport's early live shows in London in the late 1960s saw Dyble share stages with names like...