Mahler was a case in doing small but significant changes in the orchestration of his works according to the venues he played.Here is a post I did last July: <a href="http://beckmessersrants.blogspot.com/2010/07/orchestras-on-steroids.htmlBest,">http://beckmessersrants.blogspot.com/2010/07/orchestras-on-steroids.htmlBest,</a> Antoine