In terms of the scale of his compositions, John Adams' career is somewhat anomalous for a contemporary composer. While the usual pattern tends to be for a composer to begin a career writing smaller pieces (which have a far likelier chance of being performed) and then expanding to larger forms as his or her reputation grows, Adams (with very few exceptions) was writing large-scale operas and orchestral and choral works starting in the early '80s and didn't begin devoting himself to chamber music with any regularity until the mid-'90s.