I read somewhere - years ago - and i don't recall where, that the King
of the Delta Blues Singers LP had artificial reverb added to goose the recordings up a bit for modern (43 years ago!) ears, and that the
King of the Delta Blues Singers Vol 2 was dry, free of reverb and more faithful to the original recordings. I've heard 78's of Johnson and to me the SOUND of them is noticeably better than any of the reissues. I also think that all of this stuff is typical White Boy
Nerdism writ large. But it is interesting. Have you ever listened to any of the recordings of James Blood Ulmer?