@frogman Welcome back. Its good to know you are ok and still with us.
Your first post in a while is once again very informative for an avid jazz listener who is not a schooled and working musician such as myself.
Re Sonny Rollins: I understand what you are saying about Sonny's harmonic prowess and I think this is why I have such a great experience whenever I listen to any of his music. Btw, his new biography is incredible so far. Its not just about him but all of the great musicians he knew, played with, or recorded with.
Saxophone Colossus - The Life and Music of Sonny Rollins could have had more subtitles such as growing up in Harlem during the Harlem Renaissance, The jazz artists substance addictions and following death, obscurity (great unknown artists whom addiction destroyed), substance abuse recovery , racial tensions in the USA (and not just in the south), Jim Crowe states, the music industry (recording co./labels) and on and on....
That 1957 Village Vanguard recording sans piano is a great example of Sonny's command of harmonic structure and also I like his command of playing bebop chords within the songs harmonic/melodic foundation chords.
Your points on Jackie Mac and Dolphy are appreciated as well.