Chicago Piano 1951-1958 From Cobra + JOB

Recorded in Chicago, March 22, 1951 (tracks 6, 7), June 30, 1951 (track 9), early 1952 (track 10), April 28, 1952 (track 19), June 19, 1952 (track 8), late 1952 (track 3), October 5, 1953 (tracks 17, 18), 1954/1955 (track 5), early 1955 (track 4), 1956 (tracks 1, 2), Summer 1956 (track 16), c. 1957 (tracks 12 to 15), 1958 (track 11), and unknown date (track 20). Tracks 13 and 15 are shown as "a previously unreleased title"