clarinet Mezz Mezzrow drums George Wettling piano Gene Schroeder Both sides recorded 1 July 1944 Matrix / Runout: BW 17 (Side A) Matrix / Runout: BW-17 lathe symbol (Side A runout stamped) Matrix / Runout: BW 18 (Side B) Matrix / Runout: BW-18 lathe symbol (Side B runout stamped)