Has this forum already mentioned the exhibit at the LBJ Presidential Library? If you are in central Texas, you might want to see the display of “iconic objects from America’s music history”, including one of John Coltrane’s saxophones (a saxophone that he gave to Ira Gitler). The saxophone is inside a cabinet, directly beneath two guitars owned by Jimi Hendrix.
The exhibit also has one of Dizzy Gillespie’s trumpets, a saxophone owned by Sidney Bechet, clothing worn by Billie Holiday, Ella Fitzgerald’s cabaret card, videos, handwritten lyrics, contracts, Jim Morrison’s journal, more clothing, a minimoog, etc.
https://www.lbjlibrary.org/news-and-press/press-releases/music-america-exhibition-opens-at-lbj-library