 Artists recording for the label included David "Honeyboy" Edwards, Sleepy John Estes, J.B. Hutto, Floyd Jones, Mississippi Fred McDowell, Robert Nighthawk, Doctor Ross, Johnny Shines, Otis Spann, Eddie Taylor, Big Joe Williams, Johnny "Man" Young, and the Piedmont bluesman Carl Martin, who recorded for Testament in the mid-1960s, after having been inactive as a musician for many years.Testament also released important compilations, such as a collection of topical songs on the death of President John F. Kennedy, and also a collection of historic and contemporary fife and drum band recordings.In 1994, the Testament catalog was acquired by Hightone Records, which reissued almost all the Testament albums on CD, adding previously unissued bonus tracks where available.