This December, 1974 session features some of the great bassist's finest music from his late period before his health started to fail. The excellent group which had been together for some time included tenorist George Adams, trumpeter Jack Walrath, pianist Don Pullen and Mingus's long-time drummer Dannie Richmond. Highlights include the 17-minute 'Sue's Changes' which shifts through various moods and the intensely moving 'Duke Ellington's Sound of Love' written soon after the Duke died earlier that year. George Adams performs some blues shouting on 'Devil Blues' with lyrics from Clarence 'Gatemouth' Brown's 'The Drifter'. 'Changes One' deserves to be in every Mingus collection and should appeal to anyone who loves passionate and adventurous jazz.