It's hard for me to assess what I brought because each time you pick up a camera and point it at a person, you're trying to define that person so to talk generally is difficult because I have to think of a given image in order to conjure up what we're talking about.
What you need to be a good photographer is an overwhelming curiosity and a good digestion. Sometimes you feel blessed with curiosity, sometimes you feel cursed with it.
Lesson number one: Pay attention to the intrusion of the camera.
Themes recur again and again in my work.
Recording sessions were stimulating to photograph, because everything was in motion: the subject, the musicians, the technicians and the photographer. You needed fast reflexes to keep up with moving targets, and sensitivity and skill to get the pictures while keeping out of the performers' eyeline so as not to break their concentration.
What drove me and kept me going over the decades? If I had to use a single word, it would be 'curiosity.'
I love the idea I can go off with a single camera and a few rolls of film unencumbered... I was not interested in the illusion of reality, I wanted to get close to what was happening.