"Have Mercy Judge" (1970)
The sequel to "Tulane," which was about a dope-dealing couple on the run, finds Tulane's man Johnny locked up, "charged with traffic of the forbidden" and facing an almost certain trip "to some stony mansion." His woman won't wait, and he doesn't blame her. "Have mercy on my little Tulane," the poor boy pleads. "She's too alive to try to live alone." Berry had been trying this kind of tears-on-the-guitar-strings blues since 1955. Here he finally got it right.