Premise: Trombone For Two is a 1956 album by jazz trombonists J. J. Johnson and Kai Winding ("Jay and Kai"). It was the first of five albums that Winding and Johnson recorded for Columbia Records (CL 742). George Avakian produced the recording sessions, which took place on June 23 and 24, 1955.
Hypothesis: The recording sessions took place a year before the album