Despite stints with Orchestras and duos Peterson loved the trio format best. Touring the world in the early Sixties with Ray Brown on Double Bass and Ed Thigpen on Drums the band settled in Chicago for a week long Residency, subsequently recording a four LP set of their performances. The two recordings here are considered the cream of the crop consisting of compositions from right across the 20th century along with two of Peterson's own, masterful creations. Originally released on Verve Records in 1961.