information:extraction, linguistic:translation, structural:reformatting, stylistic:style_transfer, structural:expansion
1950s and 1960s

In 1950, Copland received a U.S.-Italy Fulbright Commission scholarship to study in Rome, which he did the following year. Around this time, he also composed his Piano Quartet, adopting Schoenberg's twelve-tone method of composition, and Old American Songs (1950), the first set of which was premiered by Peter Pears and Benjamin Britten, the second by William Warfield. During the 1951–52 academic year, Copland gave a series of lectures under the Charles Eliot Norton Professorship at Harvard University. These lectures were published as the book Music and Imagination.

Because of his leftist views, which had included his support of the Communist Party USA ticket during the 1936 presidential election and his strong support of Progressive Party candidate Henry A. Wallace during the 1948 presidential election, Copland was investigated by the FBI during the Red scare of the 1950s. He was included on an FBI list of 151 artists thought to have Communist associations and found himself blacklisted, with A Lincoln Portrait withdrawn from the 1953 inaugural concert for President Eisenhower. Called later that year to a private hearing at the United States Capitol in Washington, D.C., Copland was questioned by Joseph McCarthy and Roy Cohn about his lecturing abroad and his affiliations with various organizations and events. In the process, McCarthy and Cohn neglected completely Copland's works, which made a virtue of American values. Outraged by the accusations, many members of the musical community held up Copland's music as a banner of his patriotism. The investigations ceased in 1955 and were closed in 1975.

The McCarthy probes did not seriously affect Copland's career and international artistic reputation, however taxing as they might have been on his time, energy, and emotional state. Nevertheless, beginning in 1950, Copland—who had been appalled at Stalin's persecution of Shostakovich and other artists—began resigning from participation in leftist groups. Copland, Pollack states, "stayed particularly concerned about the role of the artist in society". He decried the lack of artistic freedom in the Soviet Union, and in his 1954 Norton lecture he asserted that loss of freedom under Soviet Communism deprived artists of "the immemorial right of the artist to be wrong." He began to vote Democratic, first for Stevenson and then for Kennedy.

Potentially more damaging for Copland was a sea-change in artistic tastes, away from the Populist mores that infused his work of the 1930s and 40s. Beginning in the 1940s, intellectuals assailed Popular Front culture, to which Copland's music was linked, and labeled it, in Dickstein's words, as "hopelessly middlebrow, a dumbing down of art into toothless entertainment." They often linked their disdain for Populist art with technology, new media and mass audiences—in other words, the areas of radio, television and motion pictures, for which Copland either had or soon would write music, as well as his popular ballets. While these attacks actually began at the end of the 1930s with the writings of Clement Greenberg and Dwight Macdonald for Partisan Review, they were based in anti-Stalinist politics and would accelerate in the decades following World War II.

Despite any difficulties that his suspected Communist sympathies might have posed, Copland traveled extensively during the 1950s and early 1960s to observe the avant-garde styles of Europe, hear compositions by Soviet composers not well known in the West, and experience the new school of Polish music. While in Japan, he was taken with the work of Tōru Takemitsu and began a correspondence with him that would last over the next decade. Copland revised his text "The New Music" with comments on the styles that he encountered. He found much of what he heard dull and impersonal. Electronic music seemed to have "a depressing sameness of sound," while aleatoric music was for those "who enjoy teetering on the edge of chaos." As he summarized, "I've spent most of my life trying to get the right note in the right place. Just throwing it open to chance seems to go against my natural instincts."

In 1952, Copland received a commission from the League of Composers, funded by a grant from Richard Rodgers and Oscar Hammerstein, to write an opera for television. While Copland was aware of the potential pitfalls of that genre, which included weak libretti and demanding production values, he had also been thinking about writing an opera since the 1940s. Among the subjects he had considered were Theodore Dreiser 's An American Tragedy and Frank Norris 's McTeague He finally settled on James Agee 's Let Us Now Praise Famous Men, which seemed appropriate for the more intimate setting of television and could also be used in the "college trade," with more schools mounting operas than they had before World War II. The resulting opera, The Tender Land, was written in two acts but later expanded to three. As Copland feared, when the opera premiered in 1954 critics found the libretto to be weak. In spite of its flaws, the opera became one of the few American operas to enter the standard repertory.

In 1957, 1958, and 1976, Copland was the music director of the Ojai Music Festival, a classical and contemporary music festival in Ojai, California. For the occasion of the Metropolitan Museum of Art Centennial, Copland composed Ceremonial Fanfare for Brass Ensemble to accompany the exhibition "Masterpieces of Fifty Centuries." Leonard Bernstein, Piston, William Schuman, and Thomson also composed pieces for the museum's Centennial exhibitions.