Twelve Poems of Emily Dickinson is a song cycle for medium voice and piano by the American composer Aaron Copland. Completed in 1950 and lasting for just under half an hour, it represents Copland's longest work for solo voice. He assigned the first line of each poem as the song title, Emily Dickinson having not titled any of the pieces. The exception is "The Chariot", which was Dickinson's original published title. Each song is dedicated to a composer friend. The sequence, with dedicatees, is: Both versions have been recorded many times since their respective premieres.