found: Classic James P. Johnson sessions (1921-1943), 2015:booklet, page 24 (Keep Shufflin' Trio; vocal trio, possibly consisting of [Teddy] Bunn, [James P.] Johnson, and [Fats] Waller that recorded with Jimmie [i.e., James P.] Johnson and his orchestra in New York City, November 18, 1929) page 12 (Jimmie Johnson and his orchestra, November 18 1929 recording: "The vocal group is listed as the "Keep Shufflin' Trio," perhaps a last effort to capitalize on the familiarity (if not popularity) from the show the year before")
