Adler's ninth turn at string quartet composition was written for the Esterhazy Quartet, who were pleased to perform the world premiere in April, 2009 with the composer in attendance. Violinist Susan Jensen described the work as energetic, spirited, humorous and celebratory. The premiere follows an all-Adler 80th birthday celebration by the Esterhazy in the previous year, so this new String Quartet No. 9 is a treat. Three of the four movements proceed at a fast pace, and the Quartet is for advanced performers.