Thanks for posting, Michael.
I have so many fond memories of collecting discography of Blue Mitchell.
(My first Mosaic many years ago...)
Blue had so many distinct periods- as documented on OJC, Blue Note, and subsequent smaller labels (i.e. Mainstream).
He later co-lead groups with Junior Cook, Harold Land, etc.-- kept him busy until he ended his career as a sideman before dying prematurely of cancer
Michael, did you ever play piano in a group with Blue..?