Daily Guitar Video: Al Caiola (at age 94) backs up Jody Ebling. Perhaps my favorite role as a guitarist is to back up a capable vocalist on a ballad. When it’s done right (as it is here), the singer is free to interpret the time. The guitarists LISTENS and responds, swinging at times, resting on the pauses, filling in the holes. “You do whatever you want. I’ll be there underneath you.” This is the true art of accompaniment.