well lets see

i've heard him sing songs of the Copper family, Frank Proffit, Leadbelly, Broonzy, Josh White, Mance Lipscomb, Rev Gary Davis, Jean Bosco M'wende, Jean Ritchie. just off the top of my head.

you probably didn't notice. derek never exercised his right to bore you with his erudition.

if theres no room for people like derek in your version of the tradition - you're throwing away one of your best cards. well they did throw him away - more fool them.