Miles. Kind of Blue was the first jazz CD I bought and it completely changed what I thought I knew about jazz (and music, and trumpet, and...). After that came a lot more Miles, Freddie Hubbard, thanks to his work with Herbie; Lee Morgan, Roy Hargrove, Chet Baker and on and on. I just grabbed some Hugh Masekela from iTunes. Unreal! From Hugh I guess I'll have to go to Herb Alpet and from there to Arturo. I'm a lot newer to this than most of you and I have to say that I'm loving the journey. I wish I could add my Dad to the list. I used to sneak many looks at his trumpet and cornet when I was a kid but I never actually heard him play. It's his trumpet I play now. Great question from the OP! It's good to remember these things.