Hi David, I think it’s fair to say that backup in general in ALL keys is a topic that doesn’t get the same level of exposure that teaching a break does despite the fact that 90% of the banjo players job is to play backup in a band situation.
It been a bit of a crusade of mine these past six or seven years trying to persuade most of the prominent teachers out there to include backup as part of their teaching syllabus. I am personally grateful that Ben has listened to my feedback on this very topic and has been making great efforts to address this problem and has begun to include lots more lessons on backup as part of his teaching program. I am sure he will in time get round to teaching backup in the key of D.
I am also hoping he will look at doing some Advance Lessons on Classic Scruggs Licks check out my earlier post.