The success of Picker's first three dramatically effective and musically traditional operas earned him a commission from the Metropolitan Opera, where his An American Tragedy premiered in 2005.
Emmeline, opera in two acts Libretto by J. D. McClatchy after the novel by Judith Rossner. July 27, 1996, Santa Fe Opera, Santa Fe, New Mexico
The Fantastic Mr. Fox, opera in three acts Libretto by Donald Sturrock after the book by Roald Dahl. December 9, 1998, Los Angeles Opera, Los Angeles, California
Thérèse Raquin, opera in two acts Libretto by Gene Scheer after the novel by Emile Zola. 2001, Dallas Opera, Dallas, Texas
An American Tragedy, opera in two acts Libretto by Gene Scheer after the novel by Theodore Dreiser. December 2, 2005, Metropolitan Opera, New York, New York, Patricia Racette, Susan Graham, Nathan Gunn, Dolora Zajick, Jennifer Laramore, Kim Begley, cond. James Conlon (Met commission)