Per castalbums.org, the Sony release of this recording on CD in 1991 uses several takes different from those on previous issues records. In some cases, additional material not heard on previous editions is included.
Recorded over two days: December 19 and 20, 1949. There were two three-hour sessions each day.
Released in late January 1950 in two formats: a single LP and a set of seven 78s.