In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.
Q: In 1920 the orchestra hired Henry Hadley as " associate conductor " to perform concerts which included works by American composers .
A: 
In 1920 the orchestra hired Henry Hadley as " associate conductor " given specific responsibility for the " Americanization " of the orchestra : each of Hadley 's concerts featured at least one work by an American-born composer .