Through the 1960s and well into the following decade, Charles McPherson continued to work with Charles Mingus, in whose band he became respected as a major alto saxophonist. As his popularity increased, McPherson also appeared often as leader of his own group in clubs and concerts. In the series of recordings he began for Prestige in 1965, a new album appeared every year, always to critical acclaim. For this 1969 date, producer Don Schlitten once again teamed McPherson with a superb rhythm section headed by Barry Harris, the pianist who was influential in McPherson's formative years in Detroit. Drummer Roy Brooks and bassist Buster Williams, seasoned young veterans, melded perfectly into McPherson's and Harris's bebop vision.