Number 56 Squadron is one of the oldest and most successful squadrons of the Royal Air Force, with battle honours from many of the significant air campaigns of both World War I and World War II. As 56 (Reserve) Squadron it is now an operational evaluation unit.

The squadron was formed on 8 June 1916 and was posted to France in April 1917 as part of the Royal Flying Corps. The squadron was equipped with the then brand new SE5 fighter. Its arrival at the front with the latest fighter, combined with the unusually high proportion of experienced pilots in its ranks, led to rumours among its German opponents the squadron was specifically the 'Anti-Richthofen Squadron', dedicated to the removal of the Red Baron. Although there was no truth in these rumours, the squadron did shoot down and kill Richthofen's nearest 1917 rival Leutnant Werner Voss in an epic dogfight.

By the end of the war 56 Squadron had scored 402 victories (as 'destroyed', 'out of control' or 'driven down'), and many famous fighter aces served with the unit, such as James McCudden, Reginald Hoidge, Gerald Constable Maxwell, Arthur Rhys Davids, Geoffrey Hilton Bowman, Richard Maybery, Leonard Monteagle Barlow, Henry Burden, Cyril Crowe, Maurice Mealing, Albert Ball, William Roy Irwin, Edric Broadberry, Kenneth William Junor, Cecil Lewis, Keith Muspratt, Harold Walkerdine, William Spurrett Fielding-Johnson, William Otway Boger, Charles Jeffs, Harold Molyneux, and Duncan Grinnell-Milne, the latter of whom became the unit's last Commanding Officer before the Squadron was disbanded. During the course of the war, forty of the squadron's pilots were killed in action, twenty wounded and thirty-one taken prisoner.

Herbert von Karajan (German pronunciation: [ˈhɛɐbɛɐt fɔn ˈkaʁaˌjan]; 5 April 1908 – 16 July 1989) was an Austrian orchestra and opera conductor. To the wider world he was perhaps most famously associated with the Berlin Philharmonic, of which he was principal conductor for 35 years. Although his work was not universally admired, he is generally considered to have been one of the greatest conductors of all time, and he was a dominant figure in European classical music from the 1960s until his death. Part of the reason for this was the large number of recordings he made and their prominence during his lifetime. By one estimate he was the top-selling classical music recording artist of all time, having sold an estimated 200 million records.

The Karajans were of Greek Macedonian or Aromanian ancestry. His great-great-grandfather, Geòrgios Johannes Karajànnis, was born in Kozani, an Aromanian town in the Ottoman province of Rumelia (present West Macedonia in today's Greece), leaving for Vienna in 1767, and eventually Chemnitz, Saxony. He and his brother participated in the establishment of Saxony's cloth industry, and both were ennobled for their services by Frederick Augustus III on 1 June 1792, thus the prefix "von" to the family name. The surname Karajànnis became Karajan. Although traditional biographers ascribed a Serbian or simply a Slavic origin to his mother, Karajan's family from the maternal side, through his grandfather who was born in the village of Mojstrana, Duchy of Carniola (today in Slovenia), was Slovene. By this line, Karajan was related to Austrian composer of Slovene descent Hugo Wolf. Karajan seems to have known some Slovene.

The Chicago Symphony Orchestra (CSO) is an American orchestra based in Chicago, Illinois. It is one of the five American orchestras commonly referred to as the "Big Five". Founded in 1891, the Symphony makes its home at Orchestra Hall in Chicago and plays a summer season at the Ravinia Festival. The music director is Riccardo Muti, who began his tenure in 2010.

In 1891 Charles Norman Fay, a Chicago businessman, invited Theodore Thomas to establish an orchestra in Chicago. Conducted by Theodore Thomas under the name "Chicago Orchestra", the Orchestra played its first concert on October 16, 1891 at the Auditorium Theatre. It is one of the oldest orchestras in the United States, along with the New York Philharmonic, the Boston Symphony Orchestra and the Saint Louis Symphony Orchestra.

Orchestra Hall, now a component of the Symphony Center complex, was designed by Chicago architect Daniel H. Burnham and completed in 1904. Maestro Thomas served as music director for thirteen years until his death shortly after the orchestra's newly built residence was dedicated on December 14, 1904. The orchestra was renamed "Theodore Thomas Orchestra" in 1905 and today, Orchestra Hall still has "Theodore Thomas Orchestra Hall" inscribed in its façade.

Roby Lakatos is a Romani (Gypsy) violinist from Hungary. He is renowned for his mix of classical music with Hungarian Romani music and jazz themes.

Romani violinist Roby Lakatos is not only a scorching virtuoso, but a musician of extraordinary stylistic versatility.^{[citation needed]} Equally comfortable performing classical music as he is playing jazz and his own Hungarian folk idiom, Lakatos is the rare musician who defies definition. He is referred to as a gypsy violinist or ‘devil’s fiddler’, a classical virtuoso, a jazz improviser, a composer and arranger, and a 19th-century throwback, and he is actually all of these things at once. He is the kind of universal musician so rarely encountered in our time—a player whose strength as an interpreter derives from his activities as an improviser and composer. He has performed in the great halls and festivals of Europe, Asia and America.

Born in 1965 into the legendary family of Romani violinists descended from János Bihari, ‘King of Gypsy Violinists’, Roby Lakatos was introduced to music as a child and at the age of nine he made his public debut as first violin in a Romani band. His musicianship evolved not only within his own family but also at the Béla Bartók Conservatory of Budapest, where he won the first prize for classical violin in 1984. Between 1986 and 1996, he and his ensemble delighted audiences at the restaurant ‘Les Atéliers de la Grande Ille’ in Brussels, their musical home throughout this period. He has collaborated with Vadim Repin and Stéphane Grappelli, and his playing was greatly admired by Sir Yehudi Menuhin, who always made a point of visiting the place to hear Lakatos. In March 2004, Lakatos appeared to great acclaim with the London Symphony Orchestra in the orchestra’s ‘Genius of the Violin’ festival alongside Maxim Vengerov.

Sergei Vasilievich Rachmaninoff (Russian: Серге́й Васи́льевич Рахма́нинов) (Russian pronunciation: [sʲɪrˈɡʲej rɐxˈmanʲɪnəf]; 1 April [O.S. 20 March] 1873 – 28 March 1943) was a Russian composer, pianist, and conductor. Rachmaninoff is widely considered one of the finest pianists of his day and, as a composer, one of the last great representatives of Romanticism in Russian classical music. Early influences of Tchaikovsky, Rimsky-Korsakov, and other Russian composers gave way to a thoroughly personal idiom that included a pronounced lyricism, expressive breadth, structural ingenuity, and a tonal palette of rich, distinctive orchestral colors. The piano is featured prominently in Rachmaninoff's compositional output. He made a point of using his own skills as a performer to explore fully the expressive possibilities of the instrument. Even in his earliest works he revealed a sure grasp of idiomatic piano writing and a striking gift for melody.

Rachmaninoff was born on 1 April [O.S. 20 March] 1873 in Semyonovo, near Great Novgorod, in north-western Russia into a family of the Russian aristocracy, originally of partly Tatar descent, which had been in the service of the Russian tsars since the 16th century. His parents were both amateur pianists. When he was four, his mother gave him casual piano lessons, but it was his paternal grandfather, Arkady Alexandrovich Rachmaninoff, who brought Anna Ornatskaya, a teacher from Saint Petersburg, to teach the 9 year old Sergei in 1882. Ornatskaya remained for two or three years, until the family's house in Semyonovo had to be sold to settle debts and the Rachmaninoffs moved to Saint Petersburg.