Years ago I saw a B. Weston exhibit at SF MOMA, and there were some early small prints. One was a portrait of Stravinsky, I think. Amazing - but the style was already there. He might have been in his early twenties, and the bold, abstract sense was present all along - even in one of the very first photographs he ever made at age 12! I think Brett was much more aligned with, and influenced by, artists like Paul Klee, Brancusi, and Henry Moore than by any other photographers - even his dad. He seemed to prefer talking about these non-photographic artists more than about the usual "shop talk" of the photographers of his day. Had very little patience as I recall with methodology and endless discussions about print color, etc.
Michael, you are one lucky fellow to have seen all that work! I had an appointment arranged for me by John Woods to go visit Brett in October of 1989. Unfortunately, the big quake hit then, and the roads were impassable. I never followed up, and regret it to this day. Regardless of what any detractors might say, I think Brett was one of the greatest, and possibly the most prolific, of 20th century photographers.
I am told that when lying in hospital in Hawaii, shortly before he died, someone brought in a plant as a gift, and upon seeing it he said "Get me my camera!" Truly a man born to do his art.