 This was the longest-lived edition with a series devoted to jazz and blues and a second series devoted to country music.Among the artists who recorded for QRS were Ed Bell, Clarence Williams, Katherine Henderson, Clifford Gibson, South Street Ramblers, Earl Hines, James "Stump" Johnson, Sara Martin, Anna Bell, Edith North Johnson, and Missionary Josephine Miles.A third edition began in 1930 by the Cova Record Corporation and was strictly commercial dance bands and vocals specially recorded for QRS, pressed on inferior shellac material.