The instrument's fate is now in the hands of a federal judge in South Dakota tasked with determining whether blues guitarist Robert A. Johnson owned the guitar when he donated it to the National Music Museum last year along with a guitar made for Johnny Cash, one of Bob Dylan's harmonicas and other objects. The museum, located in Vermillion, South Dakota, insisted in a federal lawsuit last week that it is the legal owner of the broken Martin D-35, which "The King" played during his 1977 tour and gave to a fan in St.