If you are a "folkie" of a certain age, you could, and did play most of the tunes on the Dead's first album when you jammed with people, and when you performed, you had a full set of Dead stuff--

You couldn't and can't find tunes that are more traditional and rootsy than "Viola Lee Blues" and "New Minglewood Blues", and, be honest now, everybody played "Friend of the Devil"--