Question: When did Simon and Garfunkel play in the New York park where one can find free performances?

full_context: Document 1: Live at Shea Stadium: The Concert: Live at Shea Stadium: The Concert is a CD and DVD music compilation of songs performed by American singer / songwriter Billy Joel during two concerts at Shea Stadium in New York City on July 16 and 18 of 2008. It was released on March 8, 2011. The film was produced by Jon Small, Joel's former bandmate in the 1960s groups The Hassles and Attila.
Document 2: New York City: Lincoln Center for the Performing Arts, anchoring Lincoln Square on the Upper West Side of Manhattan, is home to numerous influential arts organizations, including the Metropolitan Opera, New York City Opera, New York Philharmonic, and New York City Ballet, as well as the Vivian Beaumont Theater, the Juilliard School, Jazz at Lincoln Center, and Alice Tully Hall. The Lee Strasberg Theatre and Film Institute is in Union Square, and Tisch School of the Arts is based at New York University, while Central Park SummerStage presents performances of free plays and music in Central Park.
Document 3: Seattle: Seattle has been a regional center for the performing arts for many years. The century-old Seattle Symphony Orchestra is among the world's most recorded and performs primarily at Benaroya Hall. The Seattle Opera and Pacific Northwest Ballet, which perform at McCaw Hall (opened 2003 on the site of the former Seattle Opera House at Seattle Center), are comparably distinguished, with the Opera being particularly known for its performances of the works of Richard Wagner and the PNB School (founded in 1974) ranking as one of the top three ballet training institutions in the United States. The Seattle Youth Symphony Orchestras (SYSO) is the largest symphonic youth organization in the United States. The city also boasts lauded summer and winter chamber music festivals organized by the Seattle Chamber Music Society.
Document 4: Houston: The Houston Theater District, located downtown, is home to nine major performing arts organizations and six performance halls. It is the second-largest concentration of theater seats in a downtown area in the United States. Houston is one of few United States cities with permanent, professional, resident companies in all major performing arts disciplines: opera (Houston Grand Opera), ballet (Houston Ballet), music (Houston Symphony Orchestra), and theater (The Alley Theatre). Houston is also home to folk artists, art groups and various small progressive arts organizations. Houston attracts many touring Broadway acts, concerts, shows, and exhibitions for a variety of interests. Facilities in the Theater District include the Jones Hall—home of the Houston Symphony Orchestra and Society for the Performing Arts—and the Hobby Center for the Performing Arts.
Document 5: Simon & Garfunkel: Despite this, the duo have not staged a full - scale tour or performed shows since 2010. Garfunkel confirmed to Rolling Stone in 2014 that he believes they will tour in the future, although Simon had been too ``busy ''in recent years.`` I know that audiences all over the world like Simon and Garfunkel. I'm with them. But I do n't think Paul Simon's with them,'' he remarked. In a 2016 interview with NPR's David Greene, when asked about the possibility of reuniting, Simon stated; ``Well, I do n't think most people do (constantly want Simon to relive the olden days). The fact is, is, like, we did do two big reunions, and we're done. There's nothing really much to say. You know, the music essentially stopped in 1970. And, you know, I mean, quite honestly, we do n't get along. So it's not like it's fun. If it was fun, I'd say, OK, sometimes we'll go out and sing old songs in harmony. That's cool. But when it's not fun, you know, and you're going to be in a tense situation, well, then I have a lot of musical areas that I like to play in. So that'll never happen again. That's that. ''
Document 6: Boston: Music is cherished in Boston. The Boston Symphony Orchestra is one of the "Big Five," a group of the greatest American orchestras, and the classical music magazine Gramophone called it one of the "world's best" orchestras. Symphony Hall (located west of Back Bay) is home to the Boston Symphony Orchestra, (and the related Boston Youth Symphony Orchestra, which is the largest youth orchestra in the nation) and the Boston Pops Orchestra. The British newspaper The Guardian called Boston Symphony Hall "one of the top venues for classical music in the world," adding that "Symphony Hall in Boston was where science became an essential part of concert hall design." Other concerts are held at the New England Conservatory's Jordan Hall. The Boston Ballet performs at the Boston Opera House. Other performing-arts organizations located in the city include the Boston Lyric Opera Company, Opera Boston, Boston Baroque (the first permanent Baroque orchestra in the US), and the Handel and Haydn Society (one of the oldest choral companies in the United States). The city is a center for contemporary classical music with a number of performing groups, several of which are associated with the city's conservatories and universities. These include the Boston Modern Orchestra Project and Boston Musica Viva. Several theaters are located in or near the Theater District south of Boston Common, including the Cutler Majestic Theatre, Citi Performing Arts Center, the Colonial Theater, and the Orpheum Theatre.
Document 7: The Sound of Silence: Released in October 1964, the album was a commercial failure and led to the duo breaking apart, with Paul Simon returning to England and Art Garfunkel to his studies at Columbia University. In spring 1965, the song began to attract airplay at radio stations in Boston, Massachusetts, and throughout Florida. The growing airplay led Tom Wilson, the song's producer, to remix the track, overdubbing electric instrumentation. Simon & Garfunkel were not informed of the song's remix until after its release. The single was released in September 1965.
Document 8: Miami: In addition to such annual festivals like Calle Ocho Festival and Carnaval Miami, Miami is home to many entertainment venues, theaters, museums, parks and performing arts centers. The newest addition to the Miami arts scene is the Adrienne Arsht Center for the Performing Arts, the second-largest performing arts center in the United States after the Lincoln Center in New York City, and is the home of the Florida Grand Opera. Within it are the Ziff Ballet Opera House, the center's largest venue, the Knight Concert Hall, the Carnival Studio Theater and the Peacock Rehearsal Studio. The center attracts many large-scale operas, ballets, concerts, and musicals from around the world and is Florida's grandest performing arts center. Other performing arts venues in Miami include the Gusman Center for the Performing Arts, Coconut Grove Playhouse, Colony Theatre, Lincoln Theatre, New World Center, Actor's Playhouse at the Miracle Theatre, Jackie Gleason Theatre, Manuel Artime Theater, Ring Theatre, Playground Theatre, Wertheim Performing Arts Center, the Fair Expo Center and the Bayfront Park Amphitheater for outdoor music events.
Document 9: The Concert for Bangladesh: The Concert for Bangladesh (or Bangla Desh, as the country's name was originally spelt) was a pair of benefit concerts organised by former Beatles lead guitarist George Harrison and Indian sitar player Ravi Shankar. The shows were held at 2:30 and 8:00pm on Sunday, 1 August 1971, at Madison Square Garden in New York City, to raise international awareness of, and fund relief for refugees from East Pakistan, following the Bangladesh Liberation War-related genocide. The concerts were followed by a bestselling live album, a boxed three-record set, and Apple Films' concert documentary, which opened in cinemas in the spring of 1972.
Document 10: Live from New York City, 1967: Live from New York City, 1967 is the second live album by Simon & Garfunkel, recorded at Philharmonic Hall at Lincoln Center in New York City, on 22 January 1967. The album was released on the Columbia Legacy CK 61513 label on 16 July 2002.
Document 11: New York City: The city is the birthplace of many cultural movements, including the Harlem Renaissance in literature and visual art; abstract expressionism (also known as the New York School) in painting; and hip hop, punk, salsa, disco, freestyle, Tin Pan Alley, and Jazz in music. New York City has been considered the dance capital of the world. The city is also widely celebrated in popular lore, frequently the setting for books, movies (see List of films set in New York City), and television programs. New York Fashion Week is one of the world's preeminent fashion events and is afforded extensive coverage by the media. New York has also frequently been ranked the top fashion capital of the world on the annual list compiled by the Global Language Monitor.
Document 12: Simon & Garfunkel: Simon & Garfunkel were an American folk rock duo consisting of singer - songwriter Paul Simon and singer Art Garfunkel. They were one of the best - selling music groups of the 1960s and became counterculture icons of the decade's social revolution, alongside artists such as the Beatles, the Beach Boys, and Bob Dylan. Their biggest hits -- including ``The Sound of Silence ''(1964),`` Mrs. Robinson'' (1968), ``The Boxer ''(1969), and`` Bridge over Troubled Water'' (1970) -- reached number one on singles charts worldwide.
Document 13: New York City: Major tourist destinations include Times Square; Broadway theater productions; the Empire State Building; the Statue of Liberty; Ellis Island; the United Nations Headquarters; museums such as the Metropolitan Museum of Art; greenspaces such as Central Park and Washington Square Park; Rockefeller Center; the Manhattan Chinatown; luxury shopping along Fifth and Madison Avenues; and events such as the Halloween Parade in Greenwich Village; the Macy's Thanksgiving Day Parade; the lighting of the Rockefeller Center Christmas Tree; the St. Patrick's Day parade; seasonal activities such as ice skating in Central Park in the wintertime; the Tribeca Film Festival; and free performances in Central Park at Summerstage. Major attractions in the boroughs outside Manhattan include Flushing Meadows-Corona Park and the Unisphere in Queens; the Bronx Zoo; Coney Island, Brooklyn; and the New York Botanical Garden in the Bronx. The New York Wheel, a 630-foot ferris wheel, was under construction at the northern shore of Staten Island in 2015, overlooking the Statue of Liberty, New York Harbor, and the Lower Manhattan skyline.
Document 14: The Concert in Central Park: The Concert in Central Park, released in February 1982 on Warner Bros. Records, is the first live album by American folk rock duo Simon & Garfunkel. It was recorded in September 1981 at a free benefit concert in Central Park, New York City, where the pair performed in front of more than 500,000 people. Proceeds went toward the redevelopment and maintenance of the park, which had deteriorated due to lack of municipal funding. The concert and album marked the start of a short - lived reunion for Paul Simon and Art Garfunkel. The concept of a benefit concert in Central Park had been proposed by Parks Commissioner Gordon Davis and promoter Ron Delsener. Television channel HBO agreed to carry the concert, and worked with Delsener to decide on Simon and Garfunkel as the appropriate act for this event. Besides hit songs from their years as a duo, their set - list included material from their solo careers, and covers. The show consisted of 21 songs, though two were not used in the live album. Among the songs performed were the classics ``The Sound of Silence '',`` Mrs. Robinson'', and ``The Boxer ''; the event concluded with a reprise of Simon's song,`` Late in the Evening''. Ongoing personal tensions between the duo led them to decide against a permanent reunion, despite the success of the concert and a subsequent world tour.
Document 15: New Haven, Connecticut: The city hosts numerous theatres and production houses, including the Yale Repertory Theatre, the Long Wharf Theatre, and the Shubert Theatre. There is also theatre activity from the Yale School of Drama, which works through the Yale University Theatre and the student-run Yale Cabaret. Southern Connecticut State University hosts the Lyman Center for the Performing Arts. The shuttered Palace Theatre (opposite the Shubert Theatre) is being renovated and will reopen as the College Street Music Hall in May, 2015. Smaller theatres include the Little Theater on Lincoln Street. Cooperative Arts and Humanities High School also boasts a state-of-the-art theatre on College Street. The theatre is used for student productions as well as the home to weekly services to a local non-denominational church, the City Church New Haven.
ground_truth: September 1981
sub_queries: In what New York park can one find performances at no cost? Answer: Central Park
when did simon and garfunkel play in Central Park Answer: September 1981