Question: Dance Panels is a ballet composed by a composer of what nationality?

<P0-S0>  Copland was referred to by his peers and critics as "the Dean of American Composers." <P0-S1>  The open, slowly changing harmonies in much of his music are typical of what many people consider to be the sound of American music, evoking the vast American landscape and pioneer spirit. <P0-S2>  He is best known for the works he wrote in the 1930s and 1940s in a deliberately accessible style often referred to as "populist" and which the composer labeled his "vernacular" style. <P0-S3> Aaron Copland ( ; November 14, 1900December 2, 1990) was an American composer, composition teacher, writer, and later a conductor of his own and other American music. <P0-S4>  Works in this vein include the ballets "Appalachian Spring", "Billy the Kid" and "Rodeo", his "Fanfare for the Common Man" and Third Symphony. <P0-S5>  In addition to his ballets and orchestral works, he produced music in many other genres including chamber music, vocal works, opera and film scores. <SEP> <P1-S0> Birmingham Royal Ballet (BRB) is one of the three major ballet companies of the United Kingdom, alongside The Royal Ballet and the English National Ballet. <P1-S1>  Founded as the Sadler's Wells Theatre Ballet, the company was established in 1946 as a sister company to the earlier Sadler's Wells company, which moved to the Royal Opera House that same year, subsequently becoming known as The Royal Ballet. <P1-S2>  The new company was formed under the direction of John Field and remained at Sadler's Wells for many years, becoming known as the Sadler's Wells Royal Ballet. <P1-S3>  It also toured the UK and abroad, before relocating to Birmingham in 1990, as the resident ballet company of the Birmingham Hippodrome. <P1-S4>  In 1997, the Birmingham Royal Ballet became independent of the Royal Ballet in London. <P1-S5>  As a resident company, Birmingham Royal Ballet has extensive custom-built facilities, including a suite of dance studios, the "Jerwood Centre for the Prevention and Treatment of Dance Injuries" and a studio theatre known as the "Patrick Centre". <P1-S6>  In 2002, the need for Birmingham Royal Ballet to have its own school led to a new association with Elmhurst School for Dance, which is now its official ballet school. <SEP> <P2-S0> Kikijan (Azerbaijani: "Kikican" ) – is an Azerbaijani folk dance. <P2-S1>  The Azerbaijani composer Afrasiyab Badalbeyli used the melody of the dance in “The Maiden Tower” ballet composed by him. <SEP> <P3-S0>  After Copland had written the score, Robbins reneged on his commitment and the performance did not take place. <P3-S1>  Three years later, Copland revised the score for a ballet by the Bavarian State Opera in Munich, Germany, where it premiered on 3 December 1963. <P3-S2>  The ballet was performed by the New York City Ballet in 1965 and the concert version received its first performance at the Ojai Music Festival the following year. <P3-S3>  According to Copland biographer Howard Pollack, "Dance Panels" has proven from a musical standpoint one of the composer's more accessible late scores. <P3-S4> Dance Panels is a ballet composed by Aaron Copland in 1959 for a planned collaboration with choreographer Jerome Robbins. <P3-S5>  While some of its more dissonant moments sound similar to Copland's 12-tone compositions, other parts recall his earlier stage and screen music. <P3-S6>  It is also the only one of Copland's six ballets not written to a specific program.