A Life Bridging Worlds: Hans Keller (1919-1985) Born into a cultivated Jewish family in Vienna in 1919, Hans Keller’s early life was steeped in musicality. His upbringing wasn't merely one of appreciation; it was an immersion. He received instruction from Oskar Adler, a figure who had previously mentored Arnold Schoenberg – a connection that would subtly yet profoundly shape Keller’s later analytical approach. This foundation, however, was brutally disrupted by the Anschluss in 1938. Forced to flee Austria, Keller arrived in London, carrying with him not only his musical talent but also the…