was placed in Westminster Abbey a year later. Work Auden published about four hundred poems, including seven long poems (two of them book-length). His poetry was encyclopaedic in scope and method, ranging in style from obscure twentieth-century modernism to the lucid traditional forms such as ballads and limericks, from doggerel through haiku and villanelles to a "Christmas Oratorio" and a baroque eclogue in Anglo-Saxon meters. The tone and content of his poems ranged from pop-song clichés to complex philosophical meditations, from the corns on his toes to atoms and stars, from contemporary crises to the evolution of society. He also wrote more than four hundred essays and reviews about literature, history, politics, music, religion, and many other subjects. He collaborated on plays with Christopher Isherwood and on opera libretti with Chester Kallman, and worked with a group of artists and filmmakers on documentary films in the 1930s and with the New York Pro Musica early music group in the 1950s and 1960s. About collaboration he wrote in 1964: "collaboration has brought me greater erotic joy . . . than any sexual relations I have had." Auden controversially rewrote or discarded some of his most famous poems when he prepared his later collected editions. He wrote that he rejected poems that he found "boring" or "dishonest" in the sense that they expressed views he had never held but had used only because he felt they would be rhetorically effective. His rejected poems include "Spain" and "September 1, 1939". His literary executor, Edward Mendelson, argues in his introduction to Selected Poems that Auden's practice reflected his sense of the persuasive power of poetry and his reluctance to misuse it. (Selected Poems includes some poems that Auden rejected and early texts of poems that he revised.) Early work, 1922–1939 Up to 1930 Auden began writing poems in 1922, at fifteen, mostly in the styles of 19th-century romantic poets, especially Wordsworth, and later poets with rural interests, especially Thomas Hardy. At eighteen he discovered T. S. Eliot and adopted an extreme version of Eliot's style. He found his own voice at twenty when he wrote the first poem later included in his collected work, "From the very first coming down". This and other poems of the late 1920s tended to be in a clipped, elusive style that alluded to, but did not directly state, their themes of loneliness and loss. Twenty of these poems