Do not focus on music, focus on experience and I cannot see how that one could be bad. True, Clarksdale these days may not be Clarksdale of your youth, it is way more commercialized, but some festival there cannot be unpleasant.
Marginally related to this trip, you could invite your friends to be your guests at King Biscuit, It is usually in the fall, October I think. Helena is a historic marker on the USA music map for sure.
Or Memphis in May? You will not regret it. Guaranteed.
EDIT: I just watched the video you linked to. That kind of music usually feels much better live in some small venue. It may not be your preferred thing, but it should be way better than on youtube. I am keeping my fingers crossed for you, just in case.
Marginally related to this trip, you could invite your friends to be your guests at King Biscuit, It is usually in the fall, October I think. Helena is a historic marker on the USA music map for sure.
Or Memphis in May? You will not regret it. Guaranteed.
EDIT: I just watched the video you linked to. That kind of music usually feels much better live in some small venue. It may not be your preferred thing, but it should be way better than on youtube. I am keeping my fingers crossed for you, just in case.