21st Century (2014). American composer Samuel Adler's milestone String Quartet No. 10 was composed for the Cassatt String Quartet for performance at the Bowdoin International Music Festival's 50th Anniversary season in 2014. Photo of Adler with the Cassatt Quartet at the premiere. Built in a single movement of contrasting sections, Adler's 10th will continue to be featured in upcoming concerts by the Cassatt Quartet, including a performance in Beijing in July. For advanced performers. -the publisher