It features Monk on piano, Larry Gales on bass, Charlie Rouse on tenor sax, and Ben Riley on drums.

[2] Its cover image depicts Monk as a French Resistance fighter in the Second World War, an homage to longtime patroness and friend Pannonica de Koenigswarter, who had served in the resistance, and whose likeness also appears on the cover.

[2] "Green Chimneys" is named after the school attended by Monk's daughter.

[2] For "In Walked Bud", Jon Hendricks added lyrics.

All songs composed by Thelonious Monk unless otherwise noted.