Yet, perhaps the ultimate validation for this approach lies in the proclamations of authenticity by Poles, in whose traditions both Chopin and Rubinstein were rooted. That is inherent in the nature of an addiction. Here then is the unlikely story of how biologists and hunter-conservationists brought the giant Canada goose from presumed extinction to considerable overpopulation in just four decades. Every accent bursts with expression - bold, passionate, committed and driven with huge dynamics and stunning rhythmic control.